单击AddEmployee链接后，打开下面的页面
当我点击提交，然后像这样的下一页打开
addEmployee.jsp文件
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!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>Spring MVC Form Handling</title>
</head>
<body>
<h2>Add Employee Data</h2>
<form:form method="POST" action="/save.html">
<table>
<tr>
<td><form:label path="id">Employee ID:</form:label></td>
<td><form:input path="id" value="${employee.id}" readonly="true"/></td>
</tr>
<tr>
<td><form:label path="name">Employee Name:</form:label></td>
<td><form:input path="name" value="${employee.name}"/></td>
</tr>
<tr>
<td><form:label path="age">Employee Age:</form:label></td>
<td><form:input path="age" value="${employee.age}"/></td>
</tr>
<tr>
<td><form:label path="salary">Employee Salary:</form:label></td>
<td><form:input path="salary" value="${employee.salary}"/></td>
</tr>
<tr>
<td><form:label path="address">Employee Address:</form:label></td>
<td><form:input path="address" value="${employee.address}"/></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="Submit"/></td>
</tr>
</table>
</form:form>
<c:if test="${!empty employees}">
<h2>List Employees</h2>
<table align="left" border="1">
<tr>
<th>Employee ID</th>
<th>Employee Name</th>
<th>Employee Age</th>
<th>Employee Salary</th>
<th>Employee Address</th>
<th>Actions on Row</th>
</tr>
<c:forEach items="${employees}" var="employee">
<tr>
<td><c:out value="${employee.id}"/></td>
<td><c:out value="${employee.name}"/></td>
<td><c:out value="${employee.age}"/></td>
<td><c:out value="${employee.salary}"/></td>
<td><c:out value="${employee.address}"/></td>
<td align="center"><a href="edit.html?id=${employee.id}">Edit</a> | <a href="delete.html?id=${employee.id}">Delete</a></td>
</tr>
</c:forEach>
</table>
</c:if>
</body>
</html>
employeeList.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>All Employees</title>
</head>
<body>
<h1>List Employees</h1>
<h3><a href="add.html">Add More Employee</a></h3>
<c:if test="${!empty employees}">
<table align="left" border="1">
<tr>
<th>Employee ID</th>
<th>Employee Name</th>
<th>Employee Age</th>
<th>Employee Salary</th>
<th>Employee Address</th>
</tr>
<c:forEach items="${employees}" var="employee">
<tr>
<td><c:out value="${employee.id}"/></td>
<td><c:out value="${employee.name}"/></td>
<td><c:out value="${employee.age}"/></td>
<td><c:out value="${employee.salary}"/></td>
<td><c:out value="${employee.address}"/></td>
</tr>
</c:forEach>
</table>
</c:if>
</body>
</html>
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>Spring3MVC with Hibernate3 CRUD Example using Annotations</title>
</head>
<body>
<h2>Spring3MVC with Hibernate3 CRUD Example using Annotations</h2>
<h2>1. <a href="employees.html">List of Employees</a></h2>
<h2>2. <a href="add.html">Add Employee</a></h2>
</body>
</html>
web.xml文件
<web-app version="2.5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
spring-servlet.xml文件
<beans xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<context:component-scan base-package="com"></context:component-scan>
<tx:annotation-driven transaction-manager="hibernateTransactionManager"></tx:annotation-driven>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView"></property>
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<bean class="org.springframework.jdbc.datasource.DriverManagerDataSource" id="dataSource">
<property name="driverClassName" value="org.postgresql.Driver"></property>
<property name="url" value="jdbc:postgresql://localhost:5433/databaseDb"></property>
<property name="username" value="postgres"></property>
<property name="password" value="postgres"></property>
</bean>
<bean class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" id="sessionFactory">
<property name="dataSource" ref="dataSource"></property>
<property name="annotatedClasses">
<list>
<value>com.model.Employee</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.current_session_context_class">thread</prop>
</props>
</property>
</bean>
<bean class="org.springframework.orm.hibernate4.HibernateTransactionManager" id="hibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
</beans>
EmployeeController类
package com.controller;
import com.bean.EmployeeBean;
import com.model.Employee;
import com.service.EmployeeService;
import com.sun.javafx.collections.MappingChange;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.propertyeditors.StringArrayPropertyEditor;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
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 javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import java.util.*;
/**
* Created by khan on 28/11/16.
*/
@Controller
public class EmployeeController {
@Autowired
private EmployeeService employeeService;
@RequestMapping(value = "/save", method = RequestMethod.POST)
public ModelAndView saveEmployee(@ModelAttribute("command") EmployeeBean employeeBean, BindingResult result) {
Employee employee = prepareModel(employeeBean);
employeeService.addEmployee(employee);
return new ModelAndView("redirect:/add.html");
}
@RequestMapping(value = "/employees", method = RequestMethod.GET)
public ModelAndView listEmployee() {
Map<String, Object> map = new HashMap<String, Object>();
map.put("employees", prepareListofBean(employeeService.listEmployees()));
return new ModelAndView("employeesList", map);
}
@RequestMapping(value = "/add", method = RequestMethod.GET)
public ModelAndView addEmployee(@ModelAttribute("command") EmployeeBean employeeBean, BindingResult result) {
Map<String, Object> map = new HashMap<String, Object>();
map.put("employees", prepareListofBean(employeeService.listEmployees()));
return new ModelAndView("addEmployee", map);
}
@RequestMapping(value = "/index", method = RequestMethod.GET)
public ModelAndView welcome() {
return new ModelAndView("index");
}
@RequestMapping(value = "/delete", method = RequestMethod.GET)
public ModelAndView editEmployee(@ModelAttribute("command") EmployeeBean employeeBean, BindingResult result) {
Map<String, Object> map = new HashMap<String, Object>();
map.put("employee", null);
map.put("employees", prepareListofBean(employeeService.listEmployees()));
return new ModelAndView("addEmployee", map);
}
@RequestMapping(value = "/edit", method = RequestMethod.GET)
public ModelAndView deleteEmployee(@ModelAttribute("command") EmployeeBean employeeBean, BindingResult result) {
Map<String, Object> map = new HashMap<String, Object>();
map.put("employee", prepareEmployeebean(employeeService.getEmployee(employeeBean.getId())));
map.put("employees", prepareListofBean(employeeService.listEmployees()));
return new ModelAndView("addEmployee", map);
}
private EmployeeBean prepareEmployeebean(Employee employee) {
EmployeeBean employeeBean = new EmployeeBean();
employeeBean.setAddress(employee.getEmpAddress());
employeeBean.setAge(employee.getEmpAge());
employeeBean.setSalary(employee.getEmpSalary());
employeeBean.setName(employee.getEmpName());
employeeBean.setId(employee.getEmpId());
return employeeBean;
}
private Employee prepareModel(EmployeeBean employeeBean) {
Employee employee = new Employee();
employee.setEmpAddress(employeeBean.getAddress());
employee.setEmpAge(employeeBean.getAge());
employee.setEmpName(employeeBean.getName());
employee.setEmpSalary(employeeBean.getSalary());
employee.setEmpId(null);
return employee;
}
private List<EmployeeBean> prepareListofBean(List<Employee> employees) {
List<EmployeeBean> employeeBeen = null;
if (employees != null && !employees.isEmpty()) {
employeeBeen = new ArrayList<EmployeeBean>();
EmployeeBean bean = null;
for (Employee employee : employees) {
bean = new EmployeeBean();
bean.setName(employee.getEmpName());
bean.setAge(employee.getEmpAge());
bean.setSalary(employee.getEmpSalary());
bean.setAddress(employee.getEmpAddress());
bean.setId(employee.getEmpId());
employeeBeen.add(bean);
}
}
return employeeBeen;
}
}
EmployeeService接口
package com.service;
import com.dao.EmployeeDao;
import com.model.Employee;
import org.springframework.stereotype.Service;
import java.util.List;
/**
* Created by khan on 28/11/16.
*/
public interface EmployeeService {
public void addEmployee(Employee employee);
public List<Employee> listEmployees();
public Employee getEmployee(int empid);
public void deleteEmployee(Employee employee);
}
EmployeeServiceImpl类
package com.serviceImpl;
import com.dao.EmployeeDao;
import com.model.Employee;
import com.service.EmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* Created by khan on 28/11/16.
*/
@Service("EmployeeService")
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
public class EmployeeServiceImpl implements EmployeeService {
@Autowired
private EmployeeDao employeeDao;
@Transactional(propagation = Propagation.REQUIRED, readOnly = false)
public void addEmployee(Employee employee) {
employeeDao.addEmployee(employee);
}
public List<Employee> listEmployees() {
return (List<Employee>) employeeDao.listEmployees();
}
public Employee getEmployee(int empid) {
return employeeDao.getEmployee(empid);
}
public void deleteEmployee(Employee employee) {
employeeDao.deleteEmployee(employee);
}
}
EmployeeDao界面
package com.dao;
import com.model.Employee;
import java.util.List;
/**
* Created by khan on 28/11/16.
*/
public interface EmployeeDao {
public List<Employee> listEmployees();
public void addEmployee(Employee employee);
public Employee getEmployee(int empid);
public void deleteEmployee(Employee employee);
}
EmployeDaoImpl类
package com.daoImpl;
import com.bean.EmployeeBean;
import com.dao.EmployeeDao;
import com.model.Employee;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import java.util.List;
/**
* Created by khan on 28/11/16.
*/
@Repository
public class EmployeeDaoImpl implements EmployeeDao {
@Autowired
private SessionFactory sessionFactory;
@SuppressWarnings("unchecked")
public List<Employee> listEmployees() {
Transaction transaction = sessionFactory.getCurrentSession().beginTransaction();
Criteria criteria = sessionFactory.getCurrentSession().createCriteria(Employee.class);
List<Employee> list = (List<Employee>) criteria.list();
transaction.commit();
return list;
}
public void addEmployee(Employee employee) {
Transaction transaction = sessionFactory.getCurrentSession().beginTransaction();
sessionFactory.getCurrentSession().saveOrUpdate(employee);
transaction.commit();
}
public Employee getEmployee(int empid) {
return (Employee) sessionFactory.getCurrentSession().get(Employee.class, empid);
}
public void deleteEmployee(Employee employee) {
Transaction transaction = sessionFactory.getCurrentSession().beginTransaction();
sessionFactory.getCurrentSession()
.createQuery("Delete from Employee where id=" + employee.getEmpId()).executeUpdate();
transaction.commit();
}
}
员工阶层
package com.model;
import javax.persistence.*;
/**
* Created by khan on 28/11/16.
*/
@Entity
@Table(name = "Employee")
public class Employee {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "empid")
private Integer empId;
@Column(name = "empage")
private Integer empAge;
@Column(name = "empname")
private String empName;
@Column(name = "empaddress")
private String empAddress;
@Column(name = "empsalary")
private Long empSalary;
public Integer getEmpId() {
return empId;
}
public void setEmpId(Integer empId) {
this.empId = empId;
}
public Integer getEmpAge() {
return empAge;
}
public void setEmpAge(Integer empAge) {
this.empAge = empAge;
}
public String getEmpName() {
return empName;
}
public void setEmpName(String empName) {
this.empName = empName;
}
public String getEmpAddress() {
return empAddress;
}
public void setEmpAddress(String empAddress) {
this.empAddress = empAddress;
}
public Long getEmpSalary() {
return empSalary;
}
public void setEmpSalary(Long empSalary) {
this.empSalary = empSalary;
}
}
EmployeeBean类
package com.bean;
import org.omg.CORBA.INTERNAL;
/**
* Created by khan on 28/11/16.
*/
public class EmployeeBean {
private Integer id;
private Integer age;
private String name;
private Long salary;
private String address;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Long getSalary() {
return salary;
}
public void setSalary(Long salary) {
this.salary = salary;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
请帮助我，我尝试但未解决该问题。
提前感谢每个朋友
最佳答案
将您的表单操作更改为
<form:form action="${pageContext.request.contextPath}/save.html" method="POST">
..
</form:form>