springMVC3学习(九)–redirect和forward跳转详解编程语言

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/blog.ytso.com/7387639