SpringMVC后台接受前台传值的方法

1.HttpRequestServlet 接收前台传值

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1. @RequestMapping("/go5")  
2.     public String hello5(HttpServletRequest request){  
3.         String name=request.getParameter("uname");  
4.         String id=request.getParameter("uid");  
5.         System.out.println(id+"----"+name);  
6.         return "/WEB-INF/jsp/index.jsp";  
7.     }  

@RequestMapping("/go5")public String hello5(HttpServletRequest request){String name=request.getParameter("uname");String id=request.getParameter("uid");System.out.println(id+"----"+name);return "/WEB-INF/jsp/index.jsp";}

2.直接接收前台传值

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1. //接收单个参数  
2.  @RequestMapping("/hello")  
3.  public String hello(String name){  
4.      System.out.println(name);  
5.      return "/WEB-INF/jsp/index.jsp";  
6.  }  

 //接收单个参数 @RequestMapping("/hello") public String hello(String name){ System.out.println(name); return "/WEB-INF/jsp/index.jsp"; }

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1. //接收多个参数  
2.      @RequestMapping("/go2")  
3.     public String hello3(String name,int id){  
4.          System.out.println(name);  
5.          System.out.println(id);  
6.          return "/WEB-INF/jsp/index.jsp";  
7.      }  

//接收多个参数 @RequestMapping("/go2")public String hello3(String name,int id){ System.out.println(name); System.out.println(id); return "/WEB-INF/jsp/index.jsp"; }

3.以对象形式接收前台传递的数据

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1. //以对象形式接受参数  
2.      @RequestMapping("/go4")  
3.      public String hello5( Student stu){  
4.          System.out.println(stu.getName());  
5.          System.out.println(stu.getId());  
6.          return "/WEB-INF/jsp/index.jsp";  
7.      }  

//以对象形式接受参数 @RequestMapping("/go4") public String hello5( Student stu){ System.out.println(stu.getName()); System.out.println(stu.getId()); return "/WEB-INF/jsp/index.jsp"; }

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1. public class Student {//类中必须要有无参数构造函数不然会有java.lang.NoSuchMethodException: org.entity.Student.<init>()错误  
2.      private int id;  
3.      private String name;  
4.     public Student(int id, String name) {  
5.         super();  
6.         this.id = id;  
7.         this.name = name;  
8.     }  
9.       
10.     public Student() {  
11.         super();  
12.     }  

public class Student {//类中必须要有无参数构造函数不然会有java.lang.NoSuchMethodException: org.entity.Student.<init>()错误     private int id;     private String name;public Student(int id, String name) {super();this.id = id;this.name = name;}public Student() {super();}

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1. }  

}

url:http://localhost:7080/myweb/go5.do?uid=18&uname=ii

4.restful风格

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1. //restful风格  
2.      @RequestMapping("/detete/{uid}/{uname}")  
3.      public String hello2(@PathVariable("uid")int id,@PathVariable("uname")String name){  
4.          System.out.println(id+"  ---->"+name);  
5.          return "/WEB-INF/jsp/index.jsp";  
6.      }  

//restful风格 @RequestMapping("/detete/{uid}/{uname}") public String hello2(@PathVariable("uid")int id,@PathVariable("uname")String name){ System.out.println(id+"  ---->"+name); return "/WEB-INF/jsp/index.jsp"; }

url:http://localhost:7080/myweb/go5.do?uid=18&uname=ii

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