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[Spring MVC] -简单表单提交实例

转载 作者：qq735679552 更新时间：2022-09-29 22:32:09 25 4
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Spring MVC自带的表单标签比较简单，很多时候需要借助EL和JSTL来完成.

下面是一个比较简单的表单提交页面功能：  。

1、User model 。

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package com.my.controller.bean;
 
import java.util.Date;
import java.util.List;
 
import javax.validation.constraints.Future;
import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
 
import org.hibernate.validator.constraints.Email;
import org.hibernate.validator.constraints.Length;
import org.hibernate.validator.constraints.NotEmpty;
 
public class User {
  
   private long id;
  
   @Length (min= 2 , max= 50 , message= "User name length range = 2-50" )
   private String name;
  
   @Future (message= "时间不能小于今天" )
   private Date createTime;
  
   @NotEmpty (message= "Customer不能为空" )
   private List<Customer> customers;
  
   @NotNull (message= "Girl不能为空" )
   private boolean girl;
  
   private String[] cbx;
  
   @NotNull (message= "Age can NOT be Null" )
   @Min (value= 18 , message= "最小18岁" )
   @Max (value= 100 , message= "最大100岁" )
   private int age;
  
   @Email (message= "Email格式不正确" )
   private String email;
  
   public long getId() {
     return id;
   }
   public void setId( long id) {
     this .id = id;
   }
   public String getName() {
     return name;
   }
   public void setName(String name) {
     this .name = name;
   }
   public Date getCreateTime() {
     return createTime;
   }
   public void setCreateTime(Date createTime) {
     this .createTime = createTime;
   }
   public List<Customer> getCustomers() {
     return customers;
   }
   public void setCustomers(List<Customer> customers) {
     this .customers = customers;
   }
   public boolean isGirl() {
     return girl;
   }
   public void setGirl( boolean girl) {
     this .girl = girl;
   }
   public String[] getCbx() {
     return cbx;
   }
   public void setCbx(String[] cbx) {
     this .cbx = cbx;
   }
   public int getAge() {
     return age;
   }
   public void setAge( int age) {
     this .age = age;
   }
   public String getEmail() {
     return email;
   }
   public void setEmail(String email) {
     this .email = email;
   }
 
}

2、Controller 。

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package com.my.controller;
 
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
 
import javax.validation.Valid;
 
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
 
import com.my.controller.bean.Customer;
import com.my.controller.bean.User;
 
@Controller
@RequestMapping (value= "/post" )
public class TestPostController {
  
   private static List<User> users = new ArrayList<User>();
   {
     //-----------------------------------------------
     // 设置Entity
     // -----------------------------------------------
     users.add( new User());
     User user = users.get( 0 );
     user.setId( 1 );
     user.setName( "Robin" );
     user.setCreateTime( new Date());
     user.setGirl( true );
     user.setCbx( new String[] { "1" , "2" , "3" });
     user.setAge( 18 );
     user.setEmail( "abcd@abc.com" );
    
     user.setCustomers( new ArrayList<Customer>());
     Customer customer1 = new Customer();
     customer1.setId( 1 );
     customer1.setCompany( "Company - 1" );
     customer1.setCreateTime( new Date());
     customer1.setUser(user);
     user.getCustomers().add(customer1);
    
     Customer customer2 = new Customer();
     customer2.setId( 1 );
     customer2.setCompany( "Company - 2" );
     customer2.setCreateTime( new Date());
     customer2.setUser(user);
     user.getCustomers().add(customer2);
   }
  
   @RequestMapping
   public ModelAndView index() {
     ModelAndView view = new ModelAndView( "TestPost/index" );
     view.addObject( "users" , users);
     return view;
   }
  
   @RequestMapping (value= "/addUser" , method=RequestMethod.POST)
   public ModelAndView addUser( @ModelAttribute @Valid User user, BindingResult result) {
     ModelAndView view = new ModelAndView( "redirect:/post" );
    
     if (result.hasErrors()) {
       List<FieldError> errors = result.getFieldErrors();
       for (FieldError err : errors) {
         System.out.println( "ObjectName:" + err.getObjectName() + "\tFieldName:" + err.getField()
             + "\tFieldValue:" + err.getRejectedValue() + "\tMessage:" + err.getDefaultMessage());
       }
       view.addObject( "users" , users);
       return view;
     }
    
     user.setId(users.size() + 1 );
     user.getCustomers().get( 0 ).setId( 1 );
     user.getCustomers().get( 0 ).setUser(user);
     users.add(user);
     view.addObject( "users" , users);
     return view;
   }
  
}

3、View 。

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<%@ page language= "java" contentType= "text/html; charset=UTF-8" pageEncoding= "UTF-8" %>
<%@ page import = "com.my.controller.bean.*" %>
<%@ taglib uri= "http://java.sun.com/jsp/jstl/core" prefix= "c" %>
<%@ taglib uri= "http://java.sun.com/jsp/jstl/fmt" prefix= "fmt" %>
<%@ taglib uri= "http://java.sun.com/jsp/jstl/functions" prefix= "fn" %>
<%@ taglib prefix= "st" uri= "http://www.springframework.org/tags" %>
<%@ taglib uri= "http://www.springframework.org/tags/form" prefix= "sf" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" >
<html>
<head>
<meta http-equiv= "Content-Type" content= "text/html; charset=UTF-8" >
<title>Index</title>
</head>
<body>
   <fmt:setLocale value= "zh_cn" />
   <form action= "<st:url value=" /post/addUser "></st:url>" method= "post" >
     <c:forEach items= "${users}" var= "user" >
       User:${user.name}<br/>
       Create time:<fmt:formatDate value= "${user.createTime}" /><br/>
       Is girl:
       <c:choose>
         <c:when test= "${user.girl}" >Yes</c:when>
         <c:when test= "${!user.girl}" >No</c:when>
         <c:otherwise>N/A</c:otherwise>
       </c:choose>
       <br/>
       Checkboxs:
       <c:forEach items= "${user.cbx}" var= "item" >
         ${item},
       </c:forEach>
       <br/>
       Age:${user.age}<br/>
       E-mail:${user.email}<br/>
       <hr/>
    
       <table style= "width:100%;border:1px solid #ccc;" >
         <thead>
           <tr style= "text-align:left; background-color:#eee;" >
             <th>Company name</th>
             <th>User</th>
             <th>Create time</th>
           </tr>
         </thead>
         <tbody>
           <c:forEach items= "${user.customers}" var= "item" >
           <tr>
             <td>${item.company}</td>
             <td>${item.user.name}</td>
             <td><fmt:formatDate value= "${item.createTime}" pattern= "yyyy-MM-dd" /></td>
           </tr>
           </c:forEach>
         </tbody>
       </table>
       <hr/>
     </c:forEach>
    
     User name:
     <input type= "text" name= "name" id= "name" /><br/>
     Is girl:
     <input type= "radio" name= "girl" id= "isGirl" value= "true" checked= "checked" /><label for = "isGirl" >Yes</label>
     <input type= "radio" name= "girl" id= "noGirl" value= "false" /><label for = "noGirl" >No</label><br/>
     Checkboxs:
     <input type= "checkbox" name= "cbx" id= "cbx1" value= "1" /><label for = "cbx1" > 1 </label>
     <input type= "checkbox" name= "cbx" id= "cbx2" value= "2" /><label for = "cbx2" > 2 </label>
     <input type= "checkbox" name= "cbx" id= "cbx3" value= "3" /><label for = "cbx3" > 3 </label>
     <br/>
     Age:<input type= "text" name= "age" id= "age" /><br/>
     E-mail:<input type= "text" name= "email" id= "email" /><br/>
     Create time:
     <input type= "text" name= "createTime" id= "createTime" /><br/>
     Company:
     <input type= "text" name= "customers[0].company" id= "customers[0].company" /><br/>
     <input type= "submit" value= "add" />
     <sf:errors path= "*" ></sf:errors>
   </form>
   <hr/>
</body>
</html>

4、测试结果 。

[Spring MVC] -简单表单提交实例

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我.

原文链接：http://www.cnblogs.com/HD/p/4123764.html 。

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