web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>headway</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>headway</servlet-name>
<url-pattern>/save</url-pattern>
</servlet-mapping>
</web-app>
headway-servlet.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
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">
<context:component-scan base-package="com.headway"></context:component-scan>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
empform.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>
<h1>Add New Employee</h1>
<form method="post" action="save">
<table >
<tr>
<td>Name : </td>
<td><input path="name" /></td>
</tr>
<tr>
<td>Salary :</td>
<td><input path="salary" /></td>
</tr>
<tr>
<td>Designation :</td>
<td><input path="designation" /></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" value="Save" /></td>
</tr>
</table>
<form>
</body>
</html>
viewform.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>
<h1>Employees List</h1>
<table border="2" width="70%" cellpadding="2">
<tr><th>Id</th><th>Name</th><th>Salary</th><th>Designation</th><th>Edit</th><th>Delete</th></tr>
<c:forEach var="emp" items="${list}">
<tr>
<td>${emp.id}</td>
<td>${emp.name}</td>
<td>${emp.salary}</td>
<td>${emp.designation}</td>
<td><a href="editemp/${emp.id}">Edit</a></td>
<td><a href="deleteemp/${emp.id}">Delete</a></td>
</tr>
</c:forEach>
</table>
<br/>
<a href="empform">Add New Employee</a>
</body>
</html>
Emp.java
package com.javatpoint.beans;
public class Emp {
private int id;
private String name;
private float salary;
private String designation;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getSalary() {
return salary;
}
public void setSalary(float salary) {
this.salary = salary;
}
public String getDesignation() {
return designation;
}
public void setDesignation(String designation) {
this.designation = designation;
}
}
EmpController.java
package com.javatpoint.controllers;
import java.util.ArrayList;
import java.util.List;
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.servlet.ModelAndView;
import com.javatpoint.beans.Emp;
import com.javatpoint.dao.EmpDao;
@Controller
public class EmpController {
@Autowired
EmpDao dao;//will inject dao from xml file
/*It displays a form to input data, here "command" is a reserved request attribute
*which is used to display object data into form
*/
@RequestMapping("/empform")
public ModelAndView showform(){
return new ModelAndView("empform","command",new Emp());
}
/*It saves object into database. The @ModelAttribute puts request data
* into model object. You need to mention RequestMethod.POST method
* because default request is GET*/
@RequestMapping(value="/save",method = RequestMethod.POST)
public ModelAndView save(@ModelAttribute("emp") Emp emp){
dao.save(emp);
return new ModelAndView("redirect:/viewemp.jsp");//will redirect to viewemp request mapping
}
/* It provides list of employees in model object */
@RequestMapping("/viewemp")
public ModelAndView viewemp(){
List<Emp> list=dao.getEmployees();
return new ModelAndView("viewemp","list",list);
}
}
EmpDao.java
package com.javatpoint.dao;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import com.javatpoint.beans.Emp;
public class EmpDao {
JdbcTemplate template;
private static final String driverClassName = "com.mysql.jdbc.Driver";
private static final String url = "jdbc:mysql://localhost:3306/headway";
private static final String dbUsername = "root";
private static final String dbPassword = "toor";
public void setTemplate(JdbcTemplate template) {
this.template = template;
}
public int save(Emp p){
String sql="insert into Emp99(name,salary,designation) values('"+p.getName()+"',"+p.getSalary()+",'"+p.getDesignation()+"')";
return template.update(sql);
}
public int update(Emp p){
String sql="update Emp99 set name='"+p.getName()+"', salary="+p.getSalary()+", designation='"+p.getDesignation()+"' where id="+p.getId()+"";
return template.update(sql);
}
public int delete(int id){
String sql="delete from Emp99 where id="+id+"";
return template.update(sql);
}
public Emp getEmpById(int id){
String sql="select * from Emp99 where id=?";
return template.queryForObject(sql, new Object[]{id},new BeanPropertyRowMapper<Emp>(Emp.class));
}
public List<Emp> getEmployees(){
return template.query("select * from Emp99",new RowMapper<Emp>(){
public Emp mapRow(ResultSet rs, int row) throws SQLException {
Emp e=new Emp();
e.setId(rs.getInt(1));
e.setName(rs.getString(2));
e.setSalary(rs.getFloat(3));
e.setDesignation(rs.getString(4));
return e;
}
});
}
}
hii
I am trying to insert the data in to database by using the spring mvc.
while execution it shows the HTTP Status 404 - error and server console shows the --"No mapping found for HTTP request with URI [/com.headway/save] in DispatcherServlet with name 'headway'".
please provide the solution.
Thank you.
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