一：校验

1.校验的步骤

　　使用JSP 303验证标准

　　加入Hibernate validator的jar

　　在springmvc配置文件中加入<mvc:annotation-driven/>

　　需要在bean的属性上添加@Valid注解

 

2.添加lib　　

　　hibernate的lib

　　然后需要添加hibernate需要的required中的lib包

 

3.添加验证的注解

1 package com.spring.it.enties;  2   3 import java.util.Date;  4   5 import javax.validation.constraints.Past;  6   7 import org.hibernate.validator.constraints.Email;  8 import org.hibernate.validator.constraints.NotEmpty;  9 import org.springframework.format.annotation.DateTimeFormat; 10 import org.springframework.format.annotation.NumberFormat; 11  12 public class Employee { 13      14     private Integer id; 15     @NotEmpty 16     private String lastName; 17     @Email 18     private String email; 19     //1 male, 0 female 20     private Integer gender; 21     private Department department; 22     //birth 23     @Past 24     @DateTimeFormat(pattern="yyyy-MM-dd") 25     private Date birth; 26     //salary 27     @NumberFormat(pattern="###.#") 28     private Float salary; 29      30     public Employee(Integer id, String lastName, String email, Integer gender, 31             Department department) { 32         this.id = id; 33         this.lastName = lastName; 34         this.email = email; 35         this.gender = gender; 36         this.department = department; 37     } 38  39     public Employee() { 40          41     } 42     public Integer getId() { 43         return id; 44     } 45  46     public void setId(Integer id) { 47         this.id = id; 48     } 49  50     public String getLastName() { 51         return lastName; 52     } 53  54     public void setLastName(String lastName) { 55         this.lastName =lastName; 56     } 57  58     public String getEmail() { 59         return email; 60     } 61  62     public void setEmail(String email) { 63         this.email = email; 64     } 65  66     public Integer getGender() { 67         return gender; 68     } 69  70     public void setGender(Integer gender) { 71         this.gender = gender; 72     } 73  74     public Department getDepartment() { 75         return department; 76     } 77  78     public void setDepartment(Department department) { 79         this.department = department; 80     } 81  82     public Date getBirth() { 83         return birth; 84     } 85  86     public void setBirth(Date birth) { 87         this.birth = birth; 88     } 89 // 90  91     public Float getSalary() { 92         return salary; 93     } 94  95     public void setSalary(Float salary) { 96         this.salary = salary; 97     } 98  99     @Override100     public String toString() {101         return "Employee [id=" + id + ", lastName=" + lastName + ", email=" + email + ", gender=" + gender102                 + ", department=" + department + ", birth=" + birth + ", salary=" + salary + "]";103     }104         105 }

 

4.保存上添加@Valid注解

1 /** 2      * 保存，是submit提交过来的请求，属于Post请求 3      */ 4     @RequestMapping(value="/emp",method=RequestMethod.POST) 5     public String save(@Valid Employee employee,BindingResult result) { 6         System.out.println(employee); 7         if(result.getErrorCount()>0) { 8             System.out.println("has error"); 9             for(FieldError error:result.getFieldErrors()) {10                 System.out.println(error.getField()+":"+error.getDefaultMessage());11             }12         }13         employeeDao.save(employee);14         return "redirect:/emps";15     }

 

二：出错跳转页面

1.程序

　　这个主要的逻辑是save之后的处理。

　　要将department回显，所以save函数中要添加map。

1 /** 2      * 保存，是submit提交过来的请求，属于Post请求 3      */ 4     @RequestMapping(value="/emp",method=RequestMethod.POST) 5     public String save(@Valid Employee employee,BindingResult result,Map
     
       map) { 6         System.out.println(employee); 7         if(result.getErrorCount()>0) { 8             System.out.println("has error"); 9             for(FieldError error:result.getFieldErrors()) {10                 System.out.println(error.getField()+":"+error.getDefaultMessage());11             }12             //如果出错，则转向定制的页面13             map.put("department", departmentDao.getDepartments());14             return "input";15         }16         employeeDao.save(employee);17         return "redirect:/emps";18     }
     

 

2.效果

　　就是提交之后，还是这个页面

　　

 

三：在页面上显示这个错误信息

1.input程序

　　在每一个要验证的字段后面写上：<form:errors path="birth"></form:errors><br>

1 <%@ page language="java" contentType="text/html; charset=utf-8" 2     pageEncoding="utf-8"%> 3 <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%> 4 <%@ page import="java.util.Map"%> 5 <%@ page import="java.util.HashMap"%> 6 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 7  8  9 10 
     11 12 13 14     
     
      15         16         
      17         
      18         Employee:
      19         
      20     
     
21     
22     
23 24 25     
     26     
     27     
     
      28         
      29         
      
       30             LastName:
       31             
       
       
32         
      33         
      
       34             
       35             
       36             
       37         
      38 39         Email:
      40         
      
      
41         <%42             Map
      
        genders=new HashMap();43             genders.put("1", "Male");44             genders.put("0", "Female");45             request.setAttribute("genders", genders);46         %>47         Gender:
       
       
48         Department:
       
       
50                         51         
       52         Birth:
       53         
       
       
54         Salary:
       
       
55         
       56     
      
     57 58 

 

2.效果

　　

 

四：国际化资源文件

1.添加I18n.properties

　　注意写法：

　　

1 NotEmpty.employee.lastName=\u4E0D\u80FD\u4E3A\u7A7A2 Email.employee.email=\u4E0D\u662F\u5408\u6CD5\u7684\u90AE\u4EF63 Past.employee.birth=\u4E0D\u80FD\u662F\u672A\u6765\u7684\u4E00\u4E2A\u65F6\u95F4

 

2.springmvc.xml中配置国际化

1 
      2 
     
      12     
                     13     
      14     15     
      16     
      
       17         
       18           
       19     
          20     21     
      22     23     
      24     
      
       25         
       
        26             
        
         27                 
         28             
        29         
       30     
      31     
      32     33     
      34     
      35     36     
      37     
      
       38         
       39     
      40 
     

 

3.效果