From 5e0213d3a70a31b9fe77bbc2b9339be3e031bf91 Mon Sep 17 00:00:00 2001
From: qiurunze <qiurunze@youxin.com>
Date: Mon, 10 Dec 2018 19:53:01 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E4=BA=A4=20=E9=A1=B5=E9=9D=A2?=
 =?UTF-8?q?=E7=BA=A7=E7=BC=93=E5=AD=98=20basecntroller?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../miaosha/controller/BaseController.java    | 65 +++++++++++++++++++
 .../miaosha/controller/GoodsController.java   | 16 +----
 src/main/resources/application.properties     |  2 +
 3 files changed, 69 insertions(+), 14 deletions(-)
 create mode 100644 src/main/java/com/geekq/miaosha/controller/BaseController.java

diff --git a/src/main/java/com/geekq/miaosha/controller/BaseController.java b/src/main/java/com/geekq/miaosha/controller/BaseController.java
new file mode 100644
index 0000000..387ab0d
--- /dev/null
+++ b/src/main/java/com/geekq/miaosha/controller/BaseController.java
@@ -0,0 +1,65 @@
+package com.geekq.miaosha.controller;
+
+import com.geekq.miaosha.redis.KeyPrefix;
+import com.geekq.miaosha.redis.RedisService;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.thymeleaf.context.WebContext;
+import org.thymeleaf.spring4.view.ThymeleafViewResolver;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.OutputStream;
+
+@Controller
+public class BaseController {
+
+
+    //加一个配置项
+    @Value("#{'${pageCache.enbale}'}")
+    private boolean pageCacheEnable;
+
+    @Autowired
+    ThymeleafViewResolver thymeleafViewResolver;
+
+    @Autowired
+    RedisService redisService;
+
+
+    public String render(HttpServletRequest request, HttpServletResponse response, Model model, String tplName, KeyPrefix prefix, String key) {
+        if(!pageCacheEnable) {
+            return tplName;
+        }
+        //取缓存
+        String html = redisService.get(prefix, key, String.class);
+        if(!StringUtils.isEmpty(html)) {
+            out(response, html);
+            return null;
+        }
+        //手动渲染
+        WebContext ctx = new WebContext(request,response,
+                request.getServletContext(),request.getLocale(), model.asMap());
+        html = thymeleafViewResolver.getTemplateEngine().process(tplName, ctx);
+        if(!StringUtils.isEmpty(html)) {
+            redisService.set(prefix, key, html);
+        }
+        out(response, html);
+        return null;
+    }
+
+    public static void out(HttpServletResponse res, String html){
+        res.setContentType("text/html");
+        res.setCharacterEncoding("UTF-8");
+        try{
+            OutputStream out = res.getOutputStream();
+            out.write(html.getBytes("UTF-8"));
+            out.flush();
+            out.close();
+        }catch(Exception e){
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/src/main/java/com/geekq/miaosha/controller/GoodsController.java b/src/main/java/com/geekq/miaosha/controller/GoodsController.java
index 4b5a2c6..642030c 100644
--- a/src/main/java/com/geekq/miaosha/controller/GoodsController.java
+++ b/src/main/java/com/geekq/miaosha/controller/GoodsController.java
@@ -27,7 +27,7 @@ import java.util.List;
 
 @Controller
 @RequestMapping("/goods")
-public class GoodsController {
+public class GoodsController extends BaseController {
     private static Logger log = LoggerFactory.getLogger(GoodsController.class);
 
     @Autowired
@@ -54,21 +54,9 @@ public class GoodsController {
     @ResponseBody
     public String list(HttpServletRequest request, HttpServletResponse response, Model model, MiaoshaUser user) {
         model.addAttribute("user", user);
-        //取缓存
-        String html = redisService.get(GoodsKey.getGoodsList, "", String.class);
-        if(!StringUtils.isEmpty(html)) {
-            return html;
-        }
         List<GoodsVo> goodsList = goodsService.listGoodsVo();
         model.addAttribute("goodsList", goodsList);
-        SpringWebContext ctx = new SpringWebContext(request,response,
-                request.getServletContext(),request.getLocale(), model.asMap(), applicationContext );
-        //手动渲染
-        html = viewResolver.getTemplateEngine().process("goods_list", ctx);
-        if(!StringUtils.isEmpty(html)) {
-            redisService.set(GoodsKey.getGoodsList, "", html);
-        }
-        return html;
+        return render(request,response,model,"goods_list",GoodsKey.getGoodsList,"");
     }
 
     @RequestMapping(value="/to_detail2/{goodsId}",produces="text/html")
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index bf7bb18..be31f04 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -6,6 +6,8 @@ spring.thymeleaf.content-type=text/html
 spring.thymeleaf.enabled=true
 spring.thymeleaf.encoding=UTF-8
 spring.thymeleaf.mode=HTML5
+#是否开启缓存
+pageCache.enbale=true 
 
 #mybatis
 mybatis.type-aliases-package=com.geekq.miaosha.domain