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interceptor 新增调试

zhang 2 lat temu
rodzic
92a80be1e4
commit
e0650262ac
8 zmienionych plików z 72 dodań i 11 usunięć
Widok podzielony Pokaż statystyki zmian
  1. 4 2
      springMvc/src/main/java/com/controller/UserController.java
  2. 1 5
      springMvc/src/main/java/com/interceptor/InterceptorConfig.java
  3. 10 3
      springMvc/src/main/java/com/interceptor/MyInterceptor.java
  4. 16 0
      springMvc/src/main/webapp/template/error.jsp
  5. 1 1
      springMvc/src/main/webapp/template/success.jsp
  6. 14 0
      spring_test/src/main/java/com/config/InterceptorConfig.java
  7. 20 0
      spring_test/src/main/java/com/interceptor/Myinterceptor.java
  8. 6 0
      spring_test/src/main/resources/spring-mvc.xml

+ 4 - 2
springMvc/src/main/java/com/controller/UserController.java
Wyświetl plik 

@@ -25,9 +25,11 @@ public class UserController {
25 25 
     @RequestMapping("/quick")
26 26 
     public String quick() {
27 27 
         System.out.println("userControllerRunning1...");
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-//        return "forward:success.jsp";
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+        ModelAndView modelAndView = new ModelAndView();
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+        modelAndView.addObject("name","name");
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+        return "success";
29 31 
         // 加了前后缀 完整链接应该是 forward:/template/success.jsp
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-        return "redirect:http://baidu.com";
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+//        return "redirect:http://baidu.com";
31 33 
     }
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     // 回写数据 返回字符串
33 35 
     @RequestMapping("/save")

+ 1 - 5
springMvc/src/main/java/com/interceptor/InterceptorConfig.java
Wyświetl plik 

@@ -6,13 +6,9 @@ import org.springframework.web.servlet.handler.MappedInterceptor;
6 6
7 7 
 @Configuration
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 public class InterceptorConfig {
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-    @Bean
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-    public MappedInterceptor myInterceptor() {
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-        return new MappedInterceptor(new String[]{"/**"},null,new MyInterceptor());
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-    }
13 9 
     @Bean
14 10 
     public MappedInterceptor myInterceptor2() {
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-        return new MappedInterceptor(new String[]{"/save"},null,new MyInterceptor());
11 
+        return new MappedInterceptor(new String[]{"/quick"},null,new MyInterceptor());
16 12 
     }
17 13 
     @Bean
18 14 
     public String getStr() {

+ 10 - 3
springMvc/src/main/java/com/interceptor/MyInterceptor.java
Wyświetl plik 

@@ -8,10 +8,17 @@ import javax.servlet.http.HttpServletRequest;
8 8 
 import javax.servlet.http.HttpServletResponse;
9 9 
 public class MyInterceptor implements HandlerInterceptor {
10 10 
     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
11 
-        System.out.println("pre");
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-        return true;
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+        String type = request.getParameter("type");
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+        if("login".equals(type)) {
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+            return true;
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+        } else {
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+            request.getRequestDispatcher("/template/error.jsp").forward(request,response);
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+            return false;
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+        }
13 18 
     }
14 
-    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
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+    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
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+                           ModelAndView modelAndView) throws Exception {
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+        modelAndView.addObject("name","zhangxiao");
15 22 
         System.out.println("chulihou");
16 23 
     }
17 24 
     public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

+ 16 - 0
springMvc/src/main/webapp/template/error.jsp
Wyświetl plik 

@@ -0,0 +1,16 @@
1 
+<%--
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+  Created by IntelliJ IDEA.
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+  User: 77179
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+  Date: 2022/5/25
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+  Time: 20:31
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+  To change this template use File | Settings | File Templates.
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+--%>
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+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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+<html>
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+<head>
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+    <title>Title</title>
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+</head>
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+<body>
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+<h1>error</h1>
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+</body>
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+</html>

+ 1 - 1
springMvc/src/main/webapp/template/success.jsp
Wyświetl plik 

@@ -11,6 +11,6 @@
11 11 
     <title>Title</title>
12 12 
 </head>
13 13 
 <body>
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-    <h1>success!!!</h1>
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+    <h1>success!!!${name}</h1>
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 </body>
16 16 
 </html>

+ 14 - 0
spring_test/src/main/java/com/config/InterceptorConfig.java
Wyświetl plik 

@@ -0,0 +1,14 @@
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+package com.config;
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+
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+import com.interceptor.Myinterceptor;
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+import org.springframework.context.annotation.Bean;
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+import org.springframework.context.annotation.Configuration;
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+import org.springframework.web.servlet.handler.MappedInterceptor;
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+
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+@Configuration
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+public class InterceptorConfig {
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+//    @Bean
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+//    public Privil myInterceptor2() {
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+//        return new MappedInterceptor(new String[]{"/**"},null,new Myinterceptor());
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+//    }
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+}

+ 20 - 0
spring_test/src/main/java/com/interceptor/Myinterceptor.java
Wyświetl plik 

@@ -0,0 +1,20 @@
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+package com.interceptor;
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+
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+import org.springframework.web.servlet.HandlerInterceptor;
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+import org.springframework.web.servlet.ModelAndView;
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+
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+import javax.servlet.http.HttpServletRequest;
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+import javax.servlet.http.HttpServletResponse;
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+
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+public class Myinterceptor implements HandlerInterceptor {
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+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
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+        System.out.println("preHandle");
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+        return true;
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+    }
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+
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+    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
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+    }
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+
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+    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
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+    }
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+}

+ 6 - 0
spring_test/src/main/resources/spring-mvc.xml
Wyświetl plik 

@@ -19,4 +19,10 @@
19 19 
     <mvc:default-servlet-handler/>
20 20 
     <!--4、组件扫描  扫描Controller-->
21 21 
     <context:component-scan base-package="com.controller"/>
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+    <mvc:interceptors>
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+       <mvc:interceptor>
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+           <mvc:mapping path="/**"/>
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+           <bean class="com.interceptor.Myinterceptor"></bean>
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+       </mvc:interceptor>
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+    </mvc:interceptors>
22 28 
 </beans>