springMVC3学习(九)--redirect和forward跳转

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import javax.servlet.http.HttpServletRequest;  

import javax.servlet.http.HttpServletResponse;  

import org.springframework.stereotype.Controller;  

import org.springframework.web.bind.annotation.RequestMapping;  

  

@Controller  

public class Login{  

      

        /**转发**/  

    @RequestMapping("/login.do")  

    public String login(HttpServletRequest request,HttpServletResponse   

  

response){  

        request.setAttribute("message", "hello");  

        return "forward:/index.do";  //forward在跳转后可以取到message值  

    }  

    @RequestMapping("/index.do")  

    public String index(HttpServletRequest request,HttpServletResponse   

  

response){  

        return "welcome";  

    }  

      

    /**重定向**/  

    @RequestMapping("/logout.do")  

    public String logout(HttpServletRequest request,HttpServletResponse   

  

response){  

        request.setAttribute("message", "hello");  

        return "redirect:/register.do";  //redirect在跳转后无法取到message  

  

值  

    }  

    @RequestMapping("/register.do")  

    public String register(HttpServletRequest request,HttpServletResponse   

  

response){  

        return "register";  

    }  

}  

另外forward跳转后地址栏URL不会改变 而redirect会改变

测试URL：
http://localhost:8080/spring_forward/login.do http://localhost:8080/spring_forward/logout.do
项目源码：http://download.csdn.net/detail/itmyhome/7387639