SpringMVC post请求的处理（登录表单案例）

素颜马尾好姑娘i 2022-06-05 01:35 110阅读 0赞

**SpringMVC post请求的处理（登录表单案例）**

1、准备一个登录界面 login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    	pageEncoding="UTF-8"%>
    <%
    	String path = request.getContextPath();
    	String basepath = request.getScheme() + "://"
    			+ request.getServerName() + ":" + request.getServerPort()
    			+ path + "/";
    %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <base href="<%=basepath%>" />
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title></title>
    </head>
    <body>
    	<h2>login.jsp登录界面</h2>
    	<form action="uc/islogin" method="post">
    		用户名：<input type="text" name="loginName"><br /> 
    		密码：<input type="text" name="loginPwd"><br /> 
    		<input type="submit" value="登录" />
    	</form>
    </body>
    </html>

2、在控制器中准备一个方法来处理该请求

@Controller
    @RequestMapping("uc")
    public class UserController {
    	 @RequestMapping(value = "islogin", method = RequestMethod.POST)
    	 public String isLogin(Users user) {
    		System.out.println("loginName=" + user.getLoginName() + ",loginPwd="
    		+ user.getLoginPwd());
    		return "suc";
    	 }	
    }

method属性指定请求的方式，常用到的method属性的值有两个：  
method=RequestMethod.GET  
method=RequestMethod.POST

在开发中页面传递到后台的数据可能会很多，所以我们可以把多个参数封装为一个对象来传递。但要注意的是页面中的name必须和实体类的属性名一致。

该案例的实体类为Users:

public class Users implements Serializable {
    	private Integer userId;
    	private String loginName;
    	private String loginPwd;
    	private String realName;
    
    
    	public Integer getUserId() {
    		return userId;
    	}
    
    
    	public void setUserId(Integer userId) {
    		this.userId = userId;
    	}
    
    
    	public String getLoginName() {
    		return loginName;
    	}
    
    
    	public void setLoginName(String loginName) {
    		this.loginName = loginName;
    	}
    
    
    	public String getLoginPwd() {
    		return loginPwd;
    	}
    
    
    	public void setLoginPwd(String loginPwd) {
    		this.loginPwd = loginPwd;
    	}
    
    
    	public String getRealName() {
    		return realName;
    	}
    
    
    	public void setRealName(String realName) {
    		this.realName = realName;
    	}
    
    
    }