017 SpringMVC中CRUD实例

一：新建项目（下面的几乎属于公共的方法，不需要改动）

1.结构

2.添加lib

3.配置web.xml

 <?xml version="1.0" encoding="UTF-8"?>

 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">

   <display-name>SpringMvcCRUD</display-name>

   <!-- 配置DispatchServlet -->

     <servlet>

         <servlet-name>DispatchServlet</servlet-name>

         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

         <init-param>

             <param-name>contextConfigLocation</param-name>

             <param-value>classpath:springmcv.xml</param-value>

         </init-param>

         <load-on-startup>1</load-on-startup>

     </servlet>

     <!-- 表示所有的请求都会走DispatcherServlet -->

     <servlet-mapping>

         <servlet-name>DispatchServlet</servlet-name>

         <url-pattern>/</url-pattern>

     </servlet-mapping>

     <!-- 配置过滤器 ，把POST请求转为DELETE,PUT请求-->

     <filter>

         <filter-name>HiddenHttpMethodFilter</filter-name>

         <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>

     </filter>

     <filter-mapping>

         <filter-name>HiddenHttpMethodFilter</filter-name>

         <url-pattern>/*</url-pattern>

     </filter-mapping>

 </web-app>

4.配置springmvc.xml

 <?xml version="1.0" encoding="UTF-8"?>

 <beans xmlns="http://www.springframework.org/schema/beans"

     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

     xmlns:context="http://www.springframework.org/schema/context"

     xmlns:mvc="http://www.springframework.org/schema/mvc"

     xsi:schemaLocation="http://www.springframework.org/schema/beans

     http://www.springframework.org/schema/beans/spring-beans.xsd

         http://www.springframework.org/schema/context

         http://www.springframework.org/schema/context/spring-context-4.0.xsd

         http://www.springframework.org/schema/mvc

         http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

     <!-- 配置自定义扫描的包 -->

     <context:component-scan base-package="com.spring.it" ></context:component-scan>

     <!-- 配置视图解析器 -->

     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

         <property name="prefix" value="/WEB-INF/views/" />

           <property name="suffix" value=".jsp" />

     </bean>

 </beans>

5.实体类Department

 package com.spring.it.enties;

 public class Department {

     private Integer id;

     private String departmentName;

     public Department() {

     }

     public Department(int i, String string) {

         this.id = i;

         this.departmentName = string;

     }

     public Integer getId() {

         return id;

     }

     public void setId(Integer id) {

         this.id = id;

     }

     public String getDepartmentName() {

         return departmentName;

     }

     public void setDepartmentName(String departmentName) {

         this.departmentName = departmentName;

     }

     @Override

     public String toString() {

         return "Department [id=" + id + ", departmentName=" + departmentName

                 + "]";

     }

 }

6.实体类Employee

 package com.spring.it.enties;

 import java.util.Date;

 import org.springframework.format.annotation.DateTimeFormat;

 import org.springframework.format.annotation.NumberFormat;

 public class Employee {

     private Integer id;

     private String lastName;

     private String email;

     //1 male, 0 female

     private Integer gender;

     private Department department;

     public Employee(Integer id, String lastName, String email, Integer gender,

             Department department) {

         super();

         this.id = id;

         this.lastName = lastName;

         this.email = email;

         this.gender = gender;

         this.department = department;

     }

     public Employee() {

     }

     public Integer getId() {

         return id;

     }

     public void setId(Integer id) {

         this.id = id;

     }

     public String getLastName() {

         return lastName;

     }

     public void setLastName(String lastName) {

         this.lastName = lastName;

     }

     public String getEmail() {

         return email;

     }

     public void setEmail(String email) {

         this.email = email;

     }

     public Integer getGender() {

         return gender;

     }

     public void setGender(Integer gender) {

         this.gender = gender;

     }

     public Department getDepartment() {

         return department;

     }

     public void setDepartment(Department department) {

         this.department = department;

     }

     @Override

     public String toString() {

         return "Employee [id=" + id + ", lastName=" + lastName + ", email=" + email + ", gender=" + gender

                 + ", department=" + department + "]";

     }

 }

7.Dao---DepartmentDao

 package com.spring.it.dao;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.Map;

 import org.springframework.stereotype.Repository;

 import com.spring.it.enties.Department;

 @Repository

 public class DepartmentDao {

     private static Map<Integer, Department> departments = null;

     static{

         departments = new HashMap<Integer, Department>();

         departments.put(101, new Department(101, "D-AA"));

         departments.put(102, new Department(102, "D-BB"));

         departments.put(103, new Department(103, "D-CC"));

         departments.put(104, new Department(104, "D-DD"));

         departments.put(105, new Department(105, "D-EE"));

     }

     public Collection<Department> getDepartments(){

         return departments.values();

     }

     public Department getDepartment(Integer id){

         return departments.get(id);

     }

 }

8.EmployeeDao

 package com.spring.it.dao;

 import com.spring.it.enties.Department;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.Map;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.stereotype.Repository;

 import com.spring.it.enties.Employee;

 @Repository

 public class EmployeeDao {

     private static Map<Integer, Employee> employees = null;

     @Autowired

     private DepartmentDao departmentDao;

     static{

         employees = new HashMap<Integer, Employee>();

         employees.put(1001, new Employee(1001, "E-AA", "aa@163.com", 1, new Department(101, "D-AA")));

         employees.put(1002, new Employee(1002, "E-BB", "bb@163.com", 1, new Department(102, "D-BB")));

         employees.put(1003, new Employee(1003, "E-CC", "cc@163.com", 0, new Department(103, "D-CC")));

         employees.put(1004, new Employee(1004, "E-DD", "dd@163.com", 0, new Department(104, "D-DD")));

         employees.put(1005, new Employee(1005, "E-EE", "ee@163.com", 1, new Department(105, "D-EE")));

     }

     private static Integer initId = 1006;

     public void save(Employee employee){

         if(employee.getId() == null){

             employee.setId(initId++);

         }

         employee.setDepartment(departmentDao.getDepartment(employee.getDepartment().getId()));

         employees.put(employee.getId(), employee);

     }

     public Collection<Employee> getAll(){

         return employees.values();

     }

     public Employee get(Integer id){

         return employees.get(id);

     }

     public void delete(Integer id){

         employees.remove(id);

     }

 }

二：展示所有的员工---查看操作

1.Controller--EmployeeHander

 package com.spring.it.handlers;

 import java.util.Map;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.stereotype.Controller;

 import org.springframework.web.bind.annotation.RequestMapping;

 import com.spring.it.dao.EmployeeDao;

 @Controller

 public class EmployeeHander {

     @Autowired(required=true)

     private EmployeeDao employeeDao;

     @RequestMapping("/emps")

     public String list(Map<String,Object> map) {

         System.out.println("====");

         map.put("employee", employeeDao.getAll());

         return "list";

     }

 }

2.首页index.jsp

 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"

     pageEncoding="ISO-8859-1"%>

 <!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=ISO-8859-1">

 <title>Insert title here</title>

 </head>

 <body>

     <br>

     <a href="emps">list emps</a>

 </body>

 </html>

3.list.jsp

 <%@ page language="java" contentType="text/html; charset=utf-8"

     pageEncoding="utf-8"%>

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

 <!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>Insert title here</title>

 </head>

 <body>

     This Is All Employee

     <c:if test="${empty requestScope.employee }">

         没有任何的员工信息

     </c:if>

     <c:if test="${!empty requestScope.employee }">

         <table border="1" cellpadding="10" cellspacing="0">

             <tr>            <!-- id lastName email  gender department -->

                 <th>ID</th>

                 <th>LastName</th>

                 <th>Email</th>

                 <th>Gender</th>

                 <th>Department</th>

                 <th>Edit</th>

                 <th>Delete</th>

             </tr>

             <c:forEach items="${requestScope.employee }" var="emp">

                 <tr>

                     <td>${emp.id}</td>

                     <td>${emp.lastName}</td>

                     <td>${emp.email}</td>

                     <td>${emp.gender==0?'Female':'Male'}</td>

                     <td>${emp.department.departmentName}</td>

                     <td><a href="">Edit</a></td>

                     <td><a href="">Delete</a></td>

                 </tr>

             </c:forEach>

         </table>

     </c:if>

 </body>

 </html>

4.效果

三：添加操作

1.controller

　　主要是增加了input与save操作。

 package com.spring.it.handlers;

 import java.util.Map;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.stereotype.Controller;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import com.spring.it.dao.DepartmentDao;

 import com.spring.it.dao.EmployeeDao;

 import com.spring.it.enties.Department;

 import com.spring.it.enties.Employee;

 @Controller

 public class EmployeeHander {

     @Autowired(required=true)

     private EmployeeDao employeeDao;

     @Autowired(required=true)

     private DepartmentDao departmentDao;

     /**

      * 保存，是submit提交过来的请求，属于Post请求

      */

     @RequestMapping(value="/emp",method=RequestMethod.POST)

     public String save(Employee employee) {

         employeeDao.save(employee);

         return "redirect:/emps";

     }

     /**

      * 跳转到input页面，用于添加员工,是Get请求

      */

     @RequestMapping(value="/emp",method=RequestMethod.GET)

     public String input(Map<String,Object> map) {

         map.put("department", departmentDao.getDepartments());

         //因为form表单的原因，默认一定要回显，第一次尽进来需要传入一个值

         map.put("employee", new Employee());

         return "input";

     }

     /**

      * 展示所有的员工

      */

     @RequestMapping("/emps")

     public String list(Map<String,Object> map) {

         System.out.println("====");

         map.put("employee", employeeDao.getAll());

         return "list";

     }

 }

2.input.jsp

 <%@ page language="java" contentType="text/html; charset=utf-8"

     pageEncoding="utf-8"%>

 <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>

 <%@ page import="java.util.Map"%>

 <%@ page import="java.util.HashMap"%>

 <!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>Insert title here</title>

 </head>

 <body>

     <!-- id lastName email  gender department -->

     <!-- modelAttribute默认的bean是command，需要改成对应的bean -->

     <form:form action="emp" method="POST" modelAttribute="employee">

         LastName:<form:input path="lastName"/><br>

         Email:<form:input path="email"/><br>

         <%

             Map<String,String> genders=new HashMap();

             genders.put("1", "Male");

             genders.put("0", "Female");

             request.setAttribute("genders", genders);

         %>

         Gender:<form:radiobuttons path="gender" items="${genders}"/><br>

         Department:<form:select path="department.id"

                         items="${department}" itemLabel="departmentName" itemValue="id"></form:select><br>

         <input type="submit" values="Submit">

     </form:form>

 </body>

 </html>

3.效果

4.PS---form表单

　　使用的是spring form表单，在input中需要引入标签。

四：删除操作

1.修改list.jsp

　　因为这个时候的list.jsp的delete按钮的连接还是空的，需要补充进去。

　　这个get不能直接转换成delete操作，所以需要借助js。

 <%@ page language="java" contentType="text/html; charset=utf-8"

     pageEncoding="utf-8"%>

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

 <!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>Insert title here</title>

 <script type="text/javascript" src="scripts/jquery-1.9.1.min.js"></script>

 <script type="text/javascript">

     $(function(){

         $(".delete").click(function(){

             var href = $(this).attr("href");

             $("form").attr("action", href).submit();

             return false;

         })

     })

 </script>

 </head>

 <body>

     <form action="" method="POST">

         <input type="hidden" name="_method" value="DELETE">

     </form>

     This Is All Employee

     <c:if test="${empty requestScope.employee }">

         没有任何的员工信息

     </c:if>

     <c:if test="${!empty requestScope.employee }">

         <table border="1" cellpadding="10" cellspacing="0">

             <tr>            <!-- id lastName email  gender department -->

                 <th>ID</th>

                 <th>LastName</th>

                 <th>Email</th>

                 <th>Gender</th>

                 <th>Department</th>

                 <th>Edit</th>

                 <th>Delete</th>

             </tr>

             <c:forEach items="${requestScope.employee }" var="emp">

                 <tr>

                     <td>${emp.id}</td>

                     <td>${emp.lastName}</td>

                     <td>${emp.email}</td>

                     <td>${emp.gender==0?'Female':'Male'}</td>

                     <td>${emp.department.departmentName}</td>

                     <td><a href="">Edit</a></td>

                     <td><a href="emp/${emp.id}" class="delete">Delete</a></td>

                 </tr>

             </c:forEach>

         </table>

     </c:if>

     <br><br>

     <a href="emp">Add New Employee</a>

 </body>

 </html>

2.controller

 package com.spring.it.handlers;

 import java.util.Map;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.stereotype.Controller;

 import org.springframework.web.bind.annotation.PathVariable;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.bind.annotation.ResponseBody;

 import com.spring.it.dao.DepartmentDao;

 import com.spring.it.dao.EmployeeDao;

 import com.spring.it.enties.Department;

 import com.spring.it.enties.Employee;

 @Controller

 public class EmployeeHander {

     @Autowired(required=true)

     private EmployeeDao employeeDao;

     @Autowired(required=true)

     private DepartmentDao departmentDao;

     /**

      * 删除操作

      */

     @RequestMapping(value="/emp/{id}",method=RequestMethod.DELETE)

     @ResponseBody

     public String delete(@PathVariable("id") Integer id) {

         employeeDao.delete(id);

         return "redirect:/emps";

     }

     /**

      * 保存，是submit提交过来的请求，属于Post请求

      */

     @RequestMapping(value="/emp",method=RequestMethod.POST)

     public String save(Employee employee) {

         employeeDao.save(employee);

         return "redirect:/emps";

     }

     /**

      * 跳转到input页面，用于添加员工,是Get请求

      */

     @RequestMapping(value="/emp",method=RequestMethod.GET)

     public String input(Map<String,Object> map) {

         map.put("department", departmentDao.getDepartments());

         //因为form表单的原因，默认一定要回显，第一次尽进来需要传入一个值

         map.put("employee", new Employee());

         return "input";

     }

     /**

      * 展示所有的员工

      */

     @RequestMapping("/emps")

     public String list(Map<String,Object> map) {

         System.out.println("====");

         map.put("employee", employeeDao.getAll());

         return "list";

     }

 }

3.处理静态资源

　　因为springmvc拦截所有的请求，所以静态资源也被拦截，但是静态资源没有被映射。

　　但是静态资源是不需要映射的。

　　解决方式是在springmvc的配置文件中配置default-servlet-handler，但是以前的功能又出现了问题，这个时候需要添加上annotation-driven

 <?xml version="1.0" encoding="UTF-8"?>

 <beans xmlns="http://www.springframework.org/schema/beans"

     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

     xmlns:context="http://www.springframework.org/schema/context"

     xmlns:mvc="http://www.springframework.org/schema/mvc"

     xsi:schemaLocation="http://www.springframework.org/schema/beans

     http://www.springframework.org/schema/beans/spring-beans.xsd

         http://www.springframework.org/schema/context

         http://www.springframework.org/schema/context/spring-context-4.0.xsd

         http://www.springframework.org/schema/mvc

         http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

     <!-- 配置自定义扫描的包 -->

     <context:component-scan base-package="com.spring.it" ></context:component-scan>

     <!-- 配置视图解析器 -->

     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

         <property name="prefix" value="/WEB-INF/views/" />

           <property name="suffix" value=".jsp" />

     </bean>    

     <mvc:default-servlet-handler/>

     <mvc:annotation-driven></mvc:annotation-driven>

 </beans>

4.效果

五：修改

1.修改list

　　Edit的连接需要修改。

 <%@ page language="java" contentType="text/html; charset=utf-8"

     pageEncoding="utf-8"%>

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

 <!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>Insert title here</title>

 <script type="text/javascript" src="scripts/jquery-1.9.1.min.js"></script>

 <script type="text/javascript">

     $(function(){

         $(".delete").click(function(){

             var href = $(this).attr("href");

             $("form").attr("action", href).submit();

             return false;

         })

     })

 </script>

 </head>

 <body>

     <form action="" method="POST">

         <input type="hidden" name="_method" value="DELETE">

     </form>

     This Is All Employee

     <c:if test="${empty requestScope.employee }">

         没有任何的员工信息

     </c:if>

     <c:if test="${!empty requestScope.employee }">

         <table border="1" cellpadding="10" cellspacing="0">

             <tr>            <!-- id lastName email  gender department -->

                 <th>ID</th>

                 <th>LastName</th>

                 <th>Email</th>

                 <th>Gender</th>

                 <th>Department</th>

                 <th>Edit</th>

                 <th>Delete</th>

             </tr>

             <c:forEach items="${requestScope.employee}" var="emp">

                 <tr>

                     <td>${emp.id}</td>

                     <td>${emp.lastName}</td>

                     <td>${emp.email}</td>

                     <td>${emp.gender==0?'Female':'Male'}</td>

                     <td>${emp.department.departmentName}</td>

                     <td><a href="emp/${emp.id}">Edit</a></td>

                     <td><a href="emp/${emp.id}" class="delete">Delete</a></td>

                 </tr>

             </c:forEach>

         </table>

     </c:if>

     <br><br>

     <a href="emp">Add New Employee</a>

 </body>

 </html>

2.java

　　主要有三个部分：

　　弹出到修改的页面函数

　　更新的函数

　　保证lastname不改变的函数。

 package com.spring.it.handlers;

 import java.util.Map;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.stereotype.Controller;

 import org.springframework.web.bind.annotation.ModelAttribute;

 import org.springframework.web.bind.annotation.PathVariable;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.bind.annotation.RequestParam;

 import org.springframework.web.bind.annotation.ResponseBody;

 import org.springframework.web.servlet.view.RedirectView;

 import com.spring.it.dao.DepartmentDao;

 import com.spring.it.dao.EmployeeDao;

 import com.spring.it.enties.Department;

 import com.spring.it.enties.Employee;

 @Controller

 public class EmployeeHander {

     @Autowired(required=true)

     private EmployeeDao employeeDao;

     @Autowired(required=true)

     private DepartmentDao departmentDao;

     /**

      * 使得lastName不被修改，使用ModelAttribute

      */

     @ModelAttribute

     public void getEmployee(@RequestParam(value="id",required=false) Integer id,Map<String,Object> map) {

         if(id!=null) {

             map.put("employee", employeeDao.get(id));

         }

     }

     /**

      * 编辑，主要是提交

      */

     @RequestMapping(value="/emp",method=RequestMethod.PUT)

     public String update(Employee employee) {

         employeeDao.save(employee);

         return "redirect:/emps";

     }

     /**

      * 编辑，主要是跳转到要编辑的页面

      */

     @RequestMapping(value="/emp/{id}",method=RequestMethod.GET)

     public String input(@PathVariable("id") Integer id,Map<String,Object> map) {

         map.put("department", departmentDao.getDepartments());

         //回显

         map.put("employee", employeeDao.get(id));

         return "input";

     }

     /**

      * 删除操作

      */

     @RequestMapping(value="/emp/{id}",method=RequestMethod.DELETE)

     @ResponseBody

     public String delete(@PathVariable("id") Integer id) {

         employeeDao.delete(id);

         return "redirect:/emps";

     }

     /**

      * 保存，是submit提交过来的请求，属于Post请求

      */

     @RequestMapping(value="/emp",method=RequestMethod.POST)

     public String save(Employee employee) {

         employeeDao.save(employee);

         return "redirect:/emps";

     }

     /**

      * 跳转到input页面，用于添加员工,是Get请求

      */

     @RequestMapping(value="/emp",method=RequestMethod.GET)

     public String input(Map<String,Object> map) {

         map.put("department", departmentDao.getDepartments());

         //因为form表单的原因，默认一定要回显，第一次尽进来需要传入一个值

         map.put("employee", new Employee());

         return "input";

     }

     /**

      * 展示所有的员工

      */

     @RequestMapping("/emps")

     public String list(Map<String,Object> map) {

         System.out.println("====");

         map.put("employee", employeeDao.getAll());

         return "list";

     }

 }

3.input页面

　　根据id是否存在，决定lastname是否显示。

　　id决定是否进行走PUT。

 <%@ page language="java" contentType="text/html; charset=utf-8"

     pageEncoding="utf-8"%>

 <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>

 <%@ page import="java.util.Map"%>

 <%@ page import="java.util.HashMap"%>

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

 <!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>Insert title here</title>

 </head>

 <body>

     <!-- id lastName email  gender department -->

     <!-- modelAttribute默认的bean是command，需要改成对应的bean -->

     <form:form action="${pageContext.request.contextPath}/emp" method="POST" modelAttribute="employee">

         <!-- lastName在修改的时候，不能被显示 -->

         <c:if test="${employee.id == null}">

             LastName:<form:input path="lastName"/><br>

         </c:if>

         <c:if test="${employee.id != null}">

             <form:hidden path="id"/>

             <!-- 不能使用form标签，因为modelAttribute对应的bean中没有_method这个属性，只能使用input -->

             <input type="hidden" name="_method" value="PUT"/>

         </c:if>

         Email:<form:input path="email"/><br>

         <%

             Map<String,String> genders=new HashMap();

             genders.put("1", "Male");

             genders.put("0", "Female");

             request.setAttribute("genders", genders);

         %>

         Gender:<form:radiobuttons path="gender" items="${genders}"/><br>

         Department:<form:select path="department.id"

                         items="${department}" itemLabel="departmentName" itemValue="id"></form:select><br>

         <input type="submit" values="Submit">

     </form:form>

 </body>

 </html>

4.效果

二：

巴特西

017 SpringMVC中CRUD实例

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