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提交threadlocal讲解

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qiurunze 2018-09-21 23:11:31 +08:00
parent 133946bdff
commit 9c73ca56a5
17 changed files with 467 additions and 301 deletions
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13
.idea/libraries/Maven__com_google_guava_guava_18_0.xml Normal file
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@ -0,0 +1,13 @@
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606
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@ -81,9 +92,9 @@
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@ -161,8 +143,8 @@
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@ -170,27 +152,61 @@
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@ -208,6 +224,8 @@
<find>refreshVerifyCode</find> <find>refreshVerifyCode</find>
<find>path</find> <find>path</find>
<find>/path</find> <find>/path</find>
<find>UserContext</find>
<find>user</find>
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@ -216,12 +234,6 @@
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@ -235,7 +247,6 @@
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<option value="$PROJECT_DIR$/src/main/java/com/geekq/miaosha/dao/MiaoshaUserDao.java" /> <option value="$PROJECT_DIR$/src/main/java/com/geekq/miaosha/dao/MiaoshaUserDao.java" />
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@ -265,7 +276,14 @@
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@ -313,9 +331,6 @@
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<pane id="ProjectPane"> <pane id="ProjectPane">
<subPane> <subPane>
<expand> <expand>
@ -349,33 +364,6 @@
<item name="java" type="462c0819:PsiDirectoryNode" /> <item name="java" type="462c0819:PsiDirectoryNode" />
<item name="miaosha" type="462c0819:PsiDirectoryNode" /> <item name="miaosha" type="462c0819:PsiDirectoryNode" />
</path> </path>
<path>
<item name="miaosha_1" type="b2602c69:ProjectViewProjectNode" />
<item name="miaosha_1" type="462c0819:PsiDirectoryNode" />
<item name="src" type="462c0819:PsiDirectoryNode" />
<item name="main" type="462c0819:PsiDirectoryNode" />
<item name="java" type="462c0819:PsiDirectoryNode" />
<item name="miaosha" type="462c0819:PsiDirectoryNode" />
<item name="access" type="462c0819:PsiDirectoryNode" />
</path>
<path>
<item name="miaosha_1" type="b2602c69:ProjectViewProjectNode" />
<item name="miaosha_1" type="462c0819:PsiDirectoryNode" />
<item name="src" type="462c0819:PsiDirectoryNode" />
<item name="main" type="462c0819:PsiDirectoryNode" />
<item name="java" type="462c0819:PsiDirectoryNode" />
<item name="miaosha" type="462c0819:PsiDirectoryNode" />
<item name="controller" type="462c0819:PsiDirectoryNode" />
</path>
<path>
<item name="miaosha_1" type="b2602c69:ProjectViewProjectNode" />
<item name="miaosha_1" type="462c0819:PsiDirectoryNode" />
<item name="src" type="462c0819:PsiDirectoryNode" />
<item name="main" type="462c0819:PsiDirectoryNode" />
<item name="java" type="462c0819:PsiDirectoryNode" />
<item name="miaosha" type="462c0819:PsiDirectoryNode" />
<item name="redis" type="462c0819:PsiDirectoryNode" />
</path>
<path> <path>
<item name="miaosha_1" type="b2602c69:ProjectViewProjectNode" /> <item name="miaosha_1" type="b2602c69:ProjectViewProjectNode" />
<item name="miaosha_1" type="462c0819:PsiDirectoryNode" /> <item name="miaosha_1" type="462c0819:PsiDirectoryNode" />
@ -399,6 +387,9 @@
<select /> <select />
</subPane> </subPane>
</pane> </pane>
<pane id="PackagesPane" />
<pane id="Scope" />
<pane id="AndroidView" />
</panes> </panes>
</component> </component>
<component name="PropertiesComponent"> <component name="PropertiesComponent">
@ -410,7 +401,7 @@
<property name="RequestMappingsPanelWidth2" value="75" /> <property name="RequestMappingsPanelWidth2" value="75" />
<property name="WebServerToolWindowFactoryState" value="false" /> <property name="WebServerToolWindowFactoryState" value="false" />
<property name="aspect.path.notification.shown" value="true" /> <property name="aspect.path.notification.shown" value="true" />
<property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1537284032538" /> <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1537542591345" />
<property name="last_opened_file_path" value="$PROJECT_DIR$" /> <property name="last_opened_file_path" value="$PROJECT_DIR$" />
<property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" /> <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
<property name="nodejs_npm_path_reset_for_default_project" value="true" /> <property name="nodejs_npm_path_reset_for_default_project" value="true" />
@ -449,7 +440,20 @@
</list> </list>
</option> </option>
</component> </component>
<component name="RunManager" selected="Spring Boot.ＧeekQMainApplication"> <component name="RunManager" selected="Application.Test">
<configuration name="DemoTask" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
<option name="MAIN_CLASS_NAME" value="com.geekq.miaosha.DemoTask" />
<module name="miaosha" />
<extension name="coverage">
<pattern>
<option name="PATTERN" value="com.geekq.miaosha.*" />
<option name="ENABLED" value="true" />
</pattern>
</extension>
<method v="2">
<option name="Make" enabled="true" />
</method>
</configuration>
<configuration name="MD5Utils" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true"> <configuration name="MD5Utils" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
<option name="MAIN_CLASS_NAME" value="com.geekq.miaosha.Md5Utils.MD5Utils" /> <option name="MAIN_CLASS_NAME" value="com.geekq.miaosha.Md5Utils.MD5Utils" />
<module name="miaosha" /> <module name="miaosha" />
@ -463,6 +467,19 @@
<option name="Make" enabled="true" /> <option name="Make" enabled="true" />
</method> </method>
</configuration> </configuration>
<configuration name="Test" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
<option name="MAIN_CLASS_NAME" value="com.geekq.miaosha.Test" />
<module name="miaosha" />
<extension name="coverage">
<pattern>
<option name="PATTERN" value="com.geekq.miaosha.*" />
<option name="ENABLED" value="true" />
</pattern>
</extension>
<method v="2">
<option name="Make" enabled="true" />
</method>
</configuration>
<configuration name="MainApplication" type="SpringBootApplicationConfigurationType" factoryName="Spring Boot" temporary="true" nameIsGenerated="true"> <configuration name="MainApplication" type="SpringBootApplicationConfigurationType" factoryName="Spring Boot" temporary="true" nameIsGenerated="true">
<module name="miaosha" /> <module name="miaosha" />
<extension name="coverage"> <extension name="coverage">
@ -493,9 +510,13 @@
<item itemvalue="Spring Boot.MainApplication" /> <item itemvalue="Spring Boot.MainApplication" />
<item itemvalue="Spring Boot.ＧeekQMainApplication" /> <item itemvalue="Spring Boot.ＧeekQMainApplication" />
<item itemvalue="Application.MD5Utils" /> <item itemvalue="Application.MD5Utils" />
<item itemvalue="Application.DemoTask" />
<item itemvalue="Application.Test" />
</list> </list>
<recent_temporary> <recent_temporary>
<list> <list>
<item itemvalue="Application.Test" />
<item itemvalue="Application.DemoTask" />
<item itemvalue="Spring Boot.ＧeekQMainApplication" /> <item itemvalue="Spring Boot.ＧeekQMainApplication" />
<item itemvalue="Application.MD5Utils" /> <item itemvalue="Application.MD5Utils" />
<item itemvalue="Spring Boot.MainApplication" /> <item itemvalue="Spring Boot.MainApplication" />
@ -522,12 +543,19 @@
<workItem from="1536975289539" duration="26867000" /> <workItem from="1536975289539" duration="26867000" />
<workItem from="1537060950052" duration="25966000" /> <workItem from="1537060950052" duration="25966000" />
<workItem from="1537148890283" duration="12735000" /> <workItem from="1537148890283" duration="12735000" />
<workItem from="1537236248667" duration="3148000" /> <workItem from="1537236248667" duration="4356000" />
<workItem from="1537323473437" duration="1365000" />
<workItem from="1537371216363" duration="161000" />
<workItem from="1537430338514" duration="600000" />
<workItem from="1537452261581" duration="3188000" />
<workItem from="1537495273344" duration="740000" />
<workItem from="1537508189682" duration="5476000" />
<workItem from="1537538826651" duration="3455000" />
</task> </task>
<servers /> <servers />
</component> </component>
<component name="TimeTrackingManager"> <component name="TimeTrackingManager">
<option name="totallyTimeSpent" value="102818000" /> <option name="totallyTimeSpent" value="119011000" />
</component> </component>
<component name="TodoView"> <component name="TodoView">
<todo-panel id="selected-file"> <todo-panel id="selected-file">
@ -542,7 +570,7 @@
<frame x="-1" y="29" width="1922" height="1025" extended-state="6" /> <frame x="-1" y="29" width="1922" height="1025" extended-state="6" />
<editor active="true" /> <editor active="true" />
<layout> <layout>
<window_info active="true" content_ui="combo" id="Project" order="0" visible="true" weight="0.25079873" /> <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.25346112" />
<window_info id="Structure" order="1" side_tool="true" weight="0.25" /> <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
<window_info id="Designer" order="2" /> <window_info id="Designer" order="2" />
<window_info id="Image Layers" order="3" /> <window_info id="Image Layers" order="3" />
@ -551,14 +579,14 @@
<window_info id="Capture Tool" order="6" /> <window_info id="Capture Tool" order="6" />
<window_info id="Web" order="7" side_tool="true" /> <window_info id="Web" order="7" side_tool="true" />
<window_info anchor="bottom" id="Message" order="0" /> <window_info anchor="bottom" id="Message" order="0" />
<window_info anchor="bottom" id="Find" order="1" weight="0.10391062" /> <window_info anchor="bottom" id="Find" order="1" visible="true" weight="0.1631285" />
<window_info anchor="bottom" id="Run" order="2" sideWeight="0.8951012" weight="0.40335196" /> <window_info active="true" anchor="bottom" id="Run" order="2" sideWeight="0.8951012" visible="true" weight="0.3821229" />
<window_info anchor="bottom" id="Debug" order="3" sideWeight="0.786475" weight="0.3150838" /> <window_info anchor="bottom" id="Debug" order="3" sideWeight="0.786475" weight="0.46815643" />
<window_info anchor="bottom" id="Cvs" order="4" weight="0.25" /> <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
<window_info anchor="bottom" id="Inspection" order="5" weight="0.4" /> <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
<window_info anchor="bottom" id="TODO" order="6" weight="0.32960895" /> <window_info anchor="bottom" id="TODO" order="6" weight="0.32960895" />
<window_info anchor="bottom" id="Spring" order="7" /> <window_info anchor="bottom" id="Spring" order="7" />
<window_info anchor="bottom" id="Terminal" order="8" visible="true" weight="0.32960895" /> <window_info anchor="bottom" id="Terminal" order="8" weight="0.32960895" />
<window_info anchor="bottom" id="Event Log" order="9" sideWeight="0.21352503" side_tool="true" weight="0.4111732" /> <window_info anchor="bottom" id="Event Log" order="9" sideWeight="0.21352503" side_tool="true" weight="0.4111732" />
<window_info anchor="bottom" id="Messages" order="10" sideWeight="0.49946752" weight="0.32960895" /> <window_info anchor="bottom" id="Messages" order="10" sideWeight="0.49946752" weight="0.32960895" />
<window_info anchor="bottom" id="Java Enterprise" order="11" /> <window_info anchor="bottom" id="Java Enterprise" order="11" />
@ -621,7 +649,7 @@
<breakpoints> <breakpoints>
<line-breakpoint type="java-line"> <line-breakpoint type="java-line">
<url>file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java</url> <url>file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java</url>
<line>122</line> <line>132</line>
<properties /> <properties />
<option name="timeStamp" value="10" /> <option name="timeStamp" value="10" />
</line-breakpoint> </line-breakpoint>
@ -633,7 +661,7 @@
</line-breakpoint> </line-breakpoint>
<line-breakpoint enabled="true" type="java-line"> <line-breakpoint enabled="true" type="java-line">
<url>file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java</url> <url>file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java</url>
<line>94</line> <line>104</line>
<properties /> <properties />
<option name="timeStamp" value="13" /> <option name="timeStamp" value="13" />
</line-breakpoint> </line-breakpoint>
@ -645,7 +673,7 @@
</line-breakpoint> </line-breakpoint>
<line-breakpoint enabled="true" type="java-line"> <line-breakpoint enabled="true" type="java-line">
<url>file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java</url> <url>file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java</url>
<line>108</line> <line>118</line>
<properties /> <properties />
<option name="timeStamp" value="17" /> <option name="timeStamp" value="17" />
</line-breakpoint> </line-breakpoint>
@ -673,6 +701,12 @@
<properties /> <properties />
<option name="timeStamp" value="24" /> <option name="timeStamp" value="24" />
</line-breakpoint> </line-breakpoint>
<line-breakpoint enabled="true" type="java-line">
<url>file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/service/MiaoShaUserService.java</url>
<line>81</line>
<properties />
<option name="timeStamp" value="26" />
</line-breakpoint>
</breakpoints> </breakpoints>
<breakpoints-dialog> <breakpoints-dialog>
<breakpoints-dialog /> <breakpoints-dialog />
@ -704,62 +738,6 @@
</expressions> </expressions>
</component> </component>
<component name="editorHistoryManager"> <component name="editorHistoryManager">
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/vo/OrderDetailVo.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="132">
<caret line="6" column="18" lean-forward="true" selection-start-line="6" selection-start-column="18" selection-end-line="6" selection-end-column="18" />
</state>
</provider>
</entry>
<entry file="jar://$MAVEN_REPOSITORY$/org/springframework/spring-aop/4.3.12.RELEASE/spring-aop-4.3.12.RELEASE.jar!/org/springframework/aop/framework/ReflectiveMethodInvocation.class">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="199">
<caret line="63" selection-start-line="63" selection-end-line="63" />
</state>
</provider>
</entry>
<entry file="jar://$MAVEN_REPOSITORY$/org/springframework/spring-aop/4.3.12.RELEASE/spring-aop-4.3.12.RELEASE.jar!/org/springframework/aop/framework/CglibAopProxy.class">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="199">
<caret line="476" selection-start-line="476" selection-end-line="476" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/domain/OrderInfo.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="88">
<caret line="4" column="24" lean-forward="true" selection-start-line="4" selection-start-column="24" selection-end-line="4" selection-end-column="24" />
</state>
</provider>
</entry>
<entry file="jar://$MAVEN_REPOSITORY$/org/springframework/amqp/spring-amqp/1.7.4.RELEASE/spring-amqp-1.7.4.RELEASE.jar!/org/springframework/amqp/core/AmqpTemplate.class">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="289">
<caret line="18" column="9" selection-start-line="18" selection-start-column="9" selection-end-line="18" selection-end-column="9" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/rabbitmq/MiaoshaMessage.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="88">
<caret line="4" column="27" selection-start-line="4" selection-start-column="13" selection-end-line="4" selection-end-column="27" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/rabbitmq/MQSender.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="330">
<caret line="20" column="30" lean-forward="true" selection-start-line="20" selection-start-column="30" selection-end-line="20" selection-end-column="30" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/resources/application.properties">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="217">
<caret line="51" column="30" selection-start-line="51" selection-start-column="30" selection-end-line="51" selection-end-column="30" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/dao/MiaoShaUserDao.java"> <entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/dao/MiaoShaUserDao.java">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="352"> <state relative-caret-position="352">
@ -872,13 +850,6 @@
</state> </state>
</provider> </provider>
</entry> </entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/rabbitmq/MQReceiver.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="396">
<caret line="50" column="31" lean-forward="true" selection-start-line="50" selection-start-column="31" selection-end-line="50" selection-end-column="31" />
</state>
</provider>
</entry>
<entry file="jar://$MAVEN_REPOSITORY$/org/springframework/spring-web/4.3.12.RELEASE/spring-web-4.3.12.RELEASE.jar!/org/springframework/web/method/support/InvocableHandlerMethod.class"> <entry file="jar://$MAVEN_REPOSITORY$/org/springframework/spring-web/4.3.12.RELEASE/spring-web-4.3.12.RELEASE.jar!/org/springframework/web/method/support/InvocableHandlerMethod.class">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="171"> <state relative-caret-position="171">
@ -886,13 +857,6 @@
</state> </state>
</provider> </provider>
</entry> </entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/service/OrderService.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="286">
<caret line="24" column="24" selection-start-line="24" selection-start-column="24" selection-end-line="24" selection-end-column="24" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/OrderController.java"> <entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/OrderController.java">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="141"> <state relative-caret-position="141">
@ -907,48 +871,10 @@
</state> </state>
</provider> </provider>
</entry> </entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/UserContext.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="132">
<caret line="6" column="37" lean-forward="true" selection-start-line="6" selection-start-column="37" selection-end-line="6" selection-end-column="37" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/readme.txt" /> <entry file="file://$PROJECT_DIR$/readme.txt" />
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/service/MiaoshaService.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="704">
<caret line="48" selection-start-line="48" selection-end-line="48" />
<folding>
<element signature="imports" expanded="true" />
</folding>
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/service/MiaoShaUserService.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="1958">
<caret line="103" column="19" selection-start-line="103" selection-start-column="19" selection-end-line="103" selection-end-column="19" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/miaosha.sql"> <entry file="file://$PROJECT_DIR$/miaosha.sql">
<provider selected="true" editor-type-id="text-editor" /> <provider selected="true" editor-type-id="text-editor" />
</entry> </entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/ＧeekQMainApplication.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="198">
<caret line="10" column="5" lean-forward="true" selection-start-line="8" selection-start-column="2" selection-end-line="10" selection-end-column="5" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/pom.xml">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="-1650">
<caret line="13" lean-forward="true" selection-start-line="13" selection-end-line="13" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/RedisConfig.java"> <entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/RedisConfig.java">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="132"> <state relative-caret-position="132">
@ -963,16 +889,6 @@
</state> </state>
</provider> </provider>
</entry> </entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/GoodsController.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="1122">
<caret line="74" selection-start-line="74" selection-end-line="74" />
<folding>
<element signature="imports" expanded="true" />
</folding>
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/RedisPoolFactory.java"> <entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/RedisPoolFactory.java">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="176"> <state relative-caret-position="176">
@ -990,40 +906,6 @@
<entry file="file://$PROJECT_DIR$/src/main/resources/static/order_detail.htm"> <entry file="file://$PROJECT_DIR$/src/main/resources/static/order_detail.htm">
<provider selected="true" editor-type-id="text-editor" /> <provider selected="true" editor-type-id="text-editor" />
</entry> </entry>
<entry file="file://$PROJECT_DIR$/src/main/resources/static/goods_detail.htm">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="1474">
<caret line="67" column="89" selection-start-line="67" selection-start-column="89" selection-end-line="67" selection-end-column="89" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/AccessLimit.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="154">
<caret line="11" column="12" selection-start-line="11" selection-start-column="12" selection-end-line="11" selection-end-column="12" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/AccessInterceptor.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="814">
<caret line="52" column="42" selection-start-line="52" selection-start-column="42" selection-end-line="52" selection-end-column="42" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/AccessKey.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="176">
<caret line="11" column="23" selection-start-line="11" selection-start-column="23" selection-end-line="11" selection-end-column="23" />
<folding>
<element signature="e#178#179#0" expanded="true" />
<element signature="e#213#214#0" expanded="true" />
<element signature="e#272#273#0" expanded="true" />
<element signature="e#324#325#0" expanded="true" />
</folding>
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/KeyPrefix.java"> <entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/KeyPrefix.java">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="44"> <state relative-caret-position="44">
@ -1034,13 +916,7 @@
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/BasePrefix.java"> <entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/redis/BasePrefix.java">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="264"> <state relative-caret-position="264">
<caret line="12" column="5" lean-forward="true" selection-start-line="12" selection-start-column="5" selection-end-line="12" selection-end-column="5" /> <caret line="12" column="5" selection-start-line="12" selection-start-column="5" selection-end-line="12" selection-end-column="5" />
<folding>
<element signature="e#333#334#0" expanded="true" />
<element signature="e#362#363#0" expanded="true" />
<element signature="e#410#411#0" expanded="true" />
<element signature="e#457#458#0" expanded="true" />
</folding>
</state> </state>
</provider> </provider>
</entry> </entry>
@ -1051,17 +927,173 @@
</state> </state>
</provider> </provider>
</entry> </entry>
<entry file="file://$PROJECT_DIR$/src/main/resources/static/goods_detail.htm">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="1474">
<caret line="67" column="89" selection-start-line="67" selection-start-column="89" selection-end-line="67" selection-end-column="89" />
</state>
</provider>
</entry>
<entry file="jar://$MAVEN_REPOSITORY$/com/google/guava/guava/18.0/guava-18.0.jar!/com/google/common/util/concurrent/RateLimiter.class">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="264">
<caret line="22" column="30" selection-start-line="22" selection-start-column="30" selection-end-line="22" selection-end-column="30" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/GoodsController.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="88">
<caret line="27" selection-start-line="27" selection-end-line="28" selection-end-column="25" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/pom.xml">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="660">
<caret line="30" column="21" selection-start-line="30" selection-start-column="21" selection-end-line="30" selection-end-column="21" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/RateLimiterController.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="154">
<caret line="8" selection-start-line="8" selection-end-line="8" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/ＧeekQMainApplication.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="264">
<caret line="13" lean-forward="true" selection-start-line="8" selection-start-column="2" selection-end-line="10" selection-end-column="5" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/rabbitmq/MQReceiver.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="132">
<caret line="32" column="39" selection-start-line="32" selection-start-column="31" selection-end-line="32" selection-end-column="39" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/service/OrderService.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="142">
<caret line="50" selection-start-line="50" selection-end-line="50" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/service/MiaoshaService.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="142">
<caret line="67" column="19" selection-start-line="67" selection-start-column="19" selection-end-line="67" selection-end-column="19" />
<folding>
<element signature="imports" expanded="true" />
</folding>
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/AccessKey.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="206">
<caret line="11" column="23" selection-start-line="11" selection-start-column="23" selection-end-line="11" selection-end-column="23" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java"> <entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/controller/MiaoshaController.java">
<provider selected="true" editor-type-id="text-editor"> <provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="-130"> <state relative-caret-position="726">
<caret line="89" column="13" selection-start-line="84" selection-start-column="4" selection-end-line="89" selection-end-column="13" /> <caret line="59" column="12" selection-start-line="59" selection-start-column="12" selection-end-line="59" selection-end-column="12" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/domain/MiaoshaUser.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="88">
<caret line="4" column="13" selection-start-line="4" selection-start-column="13" selection-end-line="4" selection-end-column="13" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/AccessLimit.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="132">
<caret line="10" column="18" selection-start-line="10" selection-start-column="18" selection-end-line="10" selection-end-column="18" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/AccessInterceptor.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="396">
<caret line="33" column="21" selection-start-line="33" selection-start-column="21" selection-end-line="33" selection-end-column="21" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/access/UserContext.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="132">
<caret line="6" column="27" selection-start-line="6" selection-start-column="27" selection-end-line="6" selection-end-column="27" />
<folding>
<element signature="e#244#245#0" expanded="true" />
<element signature="e#271#272#0" expanded="true" />
</folding>
</state>
</provider>
</entry>
<entry file="jar:///usr/lib/jvm/java-8-openjdk-amd64/jre/lib/rt.jar!/java/lang/ThreadLocal.class">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="1980">
<caret line="112" column="8" selection-start-line="112" selection-start-column="8" selection-end-line="112" selection-end-column="8" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/config/UserArgumentResolver.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="616">
<caret line="40" column="21" selection-start-line="40" selection-start-column="21" selection-end-line="40" selection-end-column="21" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/config/WebConfig.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="110">
<caret line="10" column="13" selection-start-line="10" selection-start-column="13" selection-end-line="10" selection-end-column="13" />
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</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/service/MiaoShaUserService.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="462">
<caret line="35" column="24" selection-start-line="35" selection-start-column="20" selection-end-line="35" selection-end-column="24" />
</state>
</provider>
</entry>
<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/DemoTask.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="277">
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<entry file="file://$PROJECT_DIR$/src/main/java/com/geekq/miaosha/Test.java">
<provider selected="true" editor-type-id="text-editor">
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<entry file="file://$PROJECT_DIR$/README.md"> <entry file="file://$PROJECT_DIR$/README.md">
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28
README.md
View File

@ -92,7 +92,33 @@ redis的数量不是库存,他的作用仅仅只是为了阻挡多余的请求
1.具体我会有时间更新关于redis的知识 1.具体我会有时间更新关于redis的知识
### <font color=#0099ff size=3 >15.rabbitmq如何做到消息不重复不丢失即使服务器重启？</font><br> ### <font color=#0099ff size=3 >15.rabbitmq如何做到消息不重复不丢失即使服务器重启？</font><br>
1.exchange持久化2.queue持久化3.发送消息设置MessageDeliveryMode.persisent这个也是默认的行为4.手动确认 1.exchange持久化2.queue持久化3.发送消息设置MessageDeliveryMode.persisent这个也是默认的行为4.手动确认
### <font color=#0099ff size=3 >15.为什么threadlocal存储user对象，原理？？</font><br>
![整体流程](http://i2.bvimg.com/601558/3293e36cc2c7e303.png)
1.并发编程中重要的问题就是数据共享，当你在一个线程中改变任意属性时，所有的线程都会因此受到影响，同时会看到第一个线程修改后的值<br>
有时我们希望如此，比如：多个线程增大或减小同一个计数器变量<br>
但是，有时我们希望确保每个线程，只能工作在它自己的线程实例的拷贝上，同时不会影响其他线程的数据<br>
举例： 举个例子，想象你在开发一个电子商务应用，你需要为每一个控制器处理的顾客请求，生成一个唯一的事务ID，同时将其传到管理器或DAO的业务方法中，以便记录日志。一种方案是将事务ID作为一个参数，传到所有的业务方法中。但这并不是一个好的方案，它会使代码变得冗余。
你可以使用ThreadLocal类型的变量解决这个问题。首先在控制器或者任意一个预处理器拦截器中生成一个事务ID
然后在ThreadLocal中 设置事务ID，最后，不论这个控制器调用什么方法，都能从threadlocal中获取事务ID
而且这个应用的控制器可以同时处理多个请求，
同时在框架 层面，因为每一个请求都是在一个单独的线程中处理的，所以事务ID对于每一个线程都是唯一的，而且可以从所有线程的执行路径获取
运行结果可以看出每个线程都在维护自己的变量：
Starting Thread: 0 : Fri Sep 21 23:05:34 CST 2018<br>
Starting Thread: 2 : Fri Sep 21 23:05:34 CST 2018<br>
Starting Thread: 1 : Fri Jan 02 05:36:17 CST 1970<br>
Thread Finished: 1 : Fri Jan 02 05:36:17 CST 1970<br>
Thread Finished: 0 : Fri Sep 21 23:05:34 CST 2018<br>
Thread Finished: 2 : Fri Sep 21 23:05:34 CST 2018<br>
局部线程通常使用在这样的情况下，当你有一些对象并不满足线程安全，但是你想避免在使用synchronized关键字<br>
块时产生的同步访问，那么，让每个线程拥有它自己的对象实例<br>
注意：局部变量是同步或局部线程的一个好的替代，它总是能够保证线程安全。唯一可能限制你这样做的是你的应用设计约束<br>
所以设计threadlocal存储user不会对对象产生影响，每次进来一个请求都会产生自身的线程变量来存储

1
miaosha.iml
View File

@ -49,6 +49,7 @@
<orderEntry type="library" name="Maven: org.springframework:spring-context:4.3.12.RELEASE" level="project" /> <orderEntry type="library" name="Maven: org.springframework:spring-context:4.3.12.RELEASE" level="project" />
<orderEntry type="library" name="Maven: org.springframework:spring-webmvc:4.3.12.RELEASE" level="project" /> <orderEntry type="library" name="Maven: org.springframework:spring-webmvc:4.3.12.RELEASE" level="project" />
<orderEntry type="library" name="Maven: org.springframework:spring-expression:4.3.12.RELEASE" level="project" /> <orderEntry type="library" name="Maven: org.springframework:spring-expression:4.3.12.RELEASE" level="project" />
<orderEntry type="library" name="Maven: com.google.guava:guava:18.0" level="project" />
<orderEntry type="library" name="Maven: org.springframework.boot:spring-boot-starter-thymeleaf:1.5.8.RELEASE" level="project" /> <orderEntry type="library" name="Maven: org.springframework.boot:spring-boot-starter-thymeleaf:1.5.8.RELEASE" level="project" />
<orderEntry type="library" name="Maven: org.thymeleaf:thymeleaf-spring4:2.1.5.RELEASE" level="project" /> <orderEntry type="library" name="Maven: org.thymeleaf:thymeleaf-spring4:2.1.5.RELEASE" level="project" />
<orderEntry type="library" name="Maven: org.thymeleaf:thymeleaf:2.1.5.RELEASE" level="project" /> <orderEntry type="library" name="Maven: org.thymeleaf:thymeleaf:2.1.5.RELEASE" level="project" />

6
pom.xml
View File

@ -24,7 +24,11 @@
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId> <artifactId>spring-boot-starter-web</artifactId>
</dependency> </dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>18.0</version>
</dependency>
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId> <artifactId>spring-boot-starter-thymeleaf</artifactId>

54
src/main/java/com/geekq/miaosha/DemoTask.java Normal file
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@ -0,0 +1,54 @@
package com.geekq.miaosha;
import java.util.Date;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
public class DemoTask implements Runnable
{
// Atomic integer containing the next thread ID to be assigned
private static final AtomicInteger nextId = new AtomicInteger(0);
// Thread local variable containing each thread's ID
private static final ThreadLocal<Integer> threadId = new ThreadLocal<Integer>()
{
@Override
protected Integer initialValue()
{
return nextId.getAndIncrement();
}
};
// Returns the current thread's unique ID, assigning it if necessary
public int getThreadId()
{
return threadId.get();
}
// Returns the current thread's starting timestamp
private static final ThreadLocal<Date> startDate = new ThreadLocal<Date>()
{
protected Date initialValue()
{
if(threadId.get()==1){
return new Date(77777777L);
}
return new Date();
}
};
@Override
public void run()
{
System.out.printf("Starting Thread: %s : %s\n", getThreadId(), startDate.get());
try
{
TimeUnit.SECONDS.sleep((int) Math.rint(Math.random() * 10));
} catch (InterruptedException e)
{
e.printStackTrace();
}
System.out.printf("Thread Finished: %s : %s\n", getThreadId(), startDate.get());
}
}

15
src/main/java/com/geekq/miaosha/Test.java Normal file
View File

@ -0,0 +1,15 @@
package com.geekq.miaosha;
public class Test {
public static void main(String[] args) {
DemoTask demoTask = new DemoTask();
DemoTask demoTask1 = new DemoTask();
DemoTask demoTask2 = new DemoTask();
Thread t = new Thread(demoTask);
t.start();
new Thread(demoTask).start();
new Thread(demoTask2).start();
}
}

25
src/main/java/com/geekq/miaosha/config/UserArgumentResolver.java
View File

@ -1,8 +1,8 @@
package com.geekq.miaosha.config; package com.geekq.miaosha.config;
import com.geekq.miaosha.access.UserContext;
import com.geekq.miaosha.domain.MiaoshaUser; import com.geekq.miaosha.domain.MiaoshaUser;
import com.geekq.miaosha.service.MiaoShaUserService; import com.geekq.miaosha.service.MiaoShaUserService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.MethodParameter; import org.springframework.core.MethodParameter;
import org.springframework.stereotype.Service; import org.springframework.stereotype.Service;
@ -13,7 +13,6 @@ import org.springframework.web.method.support.ModelAndViewContainer;
import javax.servlet.http.Cookie; import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Service @Service
public class UserArgumentResolver implements HandlerMethodArgumentResolver { public class UserArgumentResolver implements HandlerMethodArgumentResolver {
@ -28,16 +27,18 @@ public class UserArgumentResolver implements HandlerMethodArgumentResolver {
@Override @Override
public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer modelAndViewContainer, NativeWebRequest webRequest, WebDataBinderFactory webDataBinderFactory) throws Exception { public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer modelAndViewContainer, NativeWebRequest webRequest, WebDataBinderFactory webDataBinderFactory) throws Exception {
HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class); // HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class);
HttpServletResponse response = webRequest.getNativeResponse(HttpServletResponse.class); // HttpServletResponse response = webRequest.getNativeResponse(HttpServletResponse.class);
//
String paramToken = request.getParameter(MiaoShaUserService.COOKIE_NAME_TOKEN); // String paramToken = request.getParameter(MiaoShaUserService.COOKIE_NAME_TOKEN);
String cookieToken = getCookieValue(request, MiaoShaUserService.COOKIE_NAME_TOKEN); // String cookieToken = getCookieValue(request, MiaoShaUserService.COOKIE_NAME_TOKEN);
if(StringUtils.isEmpty(cookieToken) && StringUtils.isEmpty(paramToken)) { // if(StringUtils.isEmpty(cookieToken) && StringUtils.isEmpty(paramToken)) {
return null; // return null;
} // }
String token = StringUtils.isEmpty(paramToken)?cookieToken:paramToken; // String token = StringUtils.isEmpty(paramToken)?cookieToken:paramToken;
return userService.getByToken(response, token); // return userService.getByToken(response, token);
//threadlocal 存储线程副本 保证线程不冲突
return UserContext.getUser();
} }
private String getCookieValue(HttpServletRequest request, String cookiName) { private String getCookieValue(HttpServletRequest request, String cookiName) {

10
src/main/java/com/geekq/miaosha/controller/MiaoshaController.java
View File

@ -66,12 +66,22 @@ public class MiaoshaController implements InitializingBean {
return Result.error(CodeMsg.SESSION_ERROR); return Result.error(CodeMsg.SESSION_ERROR);
} }
//验证path //验证path
boolean check = miaoshaService.checkPath(user, goodsId, path); boolean check = miaoshaService.checkPath(user, goodsId, path);
if(!check){ if(!check){
return Result.error(CodeMsg.REQUEST_ILLEGAL); return Result.error(CodeMsg.REQUEST_ILLEGAL);
} }
// //使用RateLimiter 限流
// RateLimiter rateLimiter = RateLimiter.create(10);
// //判断能否在1秒内得到令牌，如果不能则立即返回false，不会阻塞程序
// if (!rateLimiter.tryAcquire(1000, TimeUnit.MILLISECONDS)) {
// System.out.println("短期无法获取令牌，真不幸，排队也瞎排");
// return Result.error(CodeMsg.MIAOSHA_FAIL);
//
// }
//是否已经秒杀到 //是否已经秒杀到
MiaoshaOrder order = orderService.getMiaoshaOrderByUserIdGoodsId(user.getId(), goodsId); MiaoshaOrder order = orderService.getMiaoshaOrderByUserIdGoodsId(user.getId(), goodsId);
if(order!=null){ if(order!=null){

10
src/main/java/com/geekq/miaosha/controller/RateLimiterController.java Normal file
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@ -0,0 +1,10 @@
package com.geekq.miaosha.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/ratelimiter")
public class RateLimiterController {
}

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target/classes/com/geekq/miaosha/controller/MiaoshaController.class
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target/classes/com/geekq/miaosha/controller/RateLimiterController.class Normal file
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