SpringMVC转发重定向

转发一

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

转发二

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

重定向

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

web配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc-servlet.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

springmvc-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--开启注解-->
    <context:component-scan base-package="com.rzk.controller"/>
    <!--过滤静态资源-->
    <mvc:default-servlet-handler/>
    <!--省去了  处理器,映射器.适配器-->
    <mvc:annotation-driven/>

</beans>

上面是不加视图解析器

springmvc-servlet.xml  配置视图解析器

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--开启注解-->
    <context:component-scan base-package="com.rzk.controller"/>
    <!--过滤静态资源-->
    <mvc:default-servlet-handler/>
    <!--省去了  处理器,映射器.适配器-->
    <mvc:annotation-driven/>

<!--    &lt;!&ndash;视图解析器 &ndash;&gt;-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          id="InternalResourceViewResolver">
        <!--前缀-->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!--后缀-->
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

先试试重定向

@Controller
public class ModelTest {
    @RequestMapping("/t1")//url访问的地址
    public String Test(Model model){
        model.addAttribute("msg","jsp下的test.jsp");
        /*redirect*/
        return "redirect:/index.jsp";
    }
}

 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

@Controller
public class ModelTest {
    @RequestMapping("/t1")//url访问的地址
    public String Test(Model model){
        model.addAttribute("msg","index");
        /*redirect*/
        return "index";
    }
}