SpringMVC转发重定向

转发一

1 @Controller
2 public class ModelTest {
3     @RequestMapping("/t1")//url访问的地址  http://localhost:8080/springmvc_04_controller01_war_exploded/t1
4     public String Test(Model model){
5         model.addAttribute("msg","jsp下的test.jsp");
6         /*默认使用forward转发*/
7         return "/WEB-INF/jsp/test.jsp";
8     }
9 }

转发二

1 @Controller
2 public class ModelTest {
3     @RequestMapping("/t1")//url访问的地址  http://localhost:8080/springmvc_04_controller01_war_exploded/t1
4     public String Test(Model model){
5         model.addAttribute("msg","jsp下的test.jsp");
6         /*在WEB-INF加forward转发*/
7         return "forward:/WEB-INF/jsp/test.jsp";
8     }
9 }

重定向

1 @Controller
 2 public class ModelTest {
 3     @RequestMapping("/t1")//url访问的地址 
 4     public String Test(Model model){
 5         model.addAttribute("msg","jsp下的test.jsp");
 6         /*redirect*/
 7         return "redirect:/index.jsp";
 8     }
 9 }
10 WEB-INF下的 资源是不能重定向的

web配置

1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
 5          version="4.0">
 6     <servlet>
 7         <servlet-name>springmvc</servlet-name>
 8         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 9         
10         <init-param>
11             <param-name>contextConfigLocation</param-name>
12             <param-value>classpath:springmvc-servlet.xml</param-value>
13         </init-param>
14     </servlet>
15     <servlet-mapping>
16         <servlet-name>springmvc</servlet-name>
17         <url-pattern>/</url-pattern>
18     </servlet-mapping>
19 
20 </web-app>

springmvc-servlet.xml

1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4        xmlns:context="http://www.springframework.org/schema/context"
 5        xmlns:mvc="http://www.springframework.org/schema/mvc"
 6        xsi:schemaLocation="http://www.springframework.org/schema/beans
 7         https://www.springframework.org/schema/beans/spring-beans.xsd
 8         http://www.springframework.org/schema/context
 9         http://www.springframework.org/schema/context/spring-context.xsd
10         http://www.springframework.org/schema/mvc
11         http://www.springframework.org/schema/mvc/spring-mvc.xsd">
12     <!--开启注解-->
13     <context:component-scan base-package="com.rzk.controller"/>
14     <!--过滤静态资源-->
15     <mvc:default-servlet-handler/>
16     <!--省去了  处理器,映射器.适配器-->
17     <mvc:annotation-driven/>
18 
19 </beans>

上面是不加视图解析器

springmvc-servlet.xml  配置视图解析器

1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4        xmlns:context="http://www.springframework.org/schema/context"
 5        xmlns:mvc="http://www.springframework.org/schema/mvc"
 6        xsi:schemaLocation="http://www.springframework.org/schema/beans
 7         https://www.springframework.org/schema/beans/spring-beans.xsd
 8         http://www.springframework.org/schema/context
 9         http://www.springframework.org/schema/context/spring-context.xsd
10         http://www.springframework.org/schema/mvc
11         http://www.springframework.org/schema/mvc/spring-mvc.xsd">
12     <!--开启注解-->
13     <context:component-scan base-package="com.rzk.controller"/>
14     <!--过滤静态资源-->
15     <mvc:default-servlet-handler/>
16     <!--省去了  处理器,映射器.适配器-->
17     <mvc:annotation-driven/>
18 
19 <!--    <!&ndash;视图解析器 &ndash;>-->
20     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
21           id="InternalResourceViewResolver">
22         <!--前缀-->
23         <property name="prefix" value="/WEB-INF/jsp/"/>
24         <!--后缀-->
25         <property name="suffix" value=".jsp"/>
26     </bean>
27 
28 </beans>

先试试重定向

1 @Controller
2 public class ModelTest {
3     @RequestMapping("/t1")//url访问的地址
4     public String Test(Model model){
5         model.addAttribute("msg","jsp下的test.jsp");
6         /*redirect*/
7         return "redirect:/index.jsp";
8     }
9 }

 是能访问的   加了视图解析器也是一样的使用

再试试有视图解析器的转发

1 @Controller
2 public class ModelTest {
3     @RequestMapping("/t1")//url访问的地址
4     public String Test(Model model){
5         model.addAttribute("msg","index");
6         /*redirect*/
7         return "index";
8     }
9 }