By GokiSoft.com|
19:19 09/10/2020|
Spring MVC
[Share Code] Hướng dẫn tạo dự án Spring MVC - Tạo Model, View, Controller - Tìm hiểu URL - Lập trình Spring MVC
Nội Dung
- Tạo project spring mvc (model, view, controller)
- Cấu hình
- Controller + Model + View
- Bài ví:
- Tạo 1 website hiển thị danh sách sinh viên.
=======================================
Tao 1 page: welcome => Hello World!!!
Path: http://localhost:8080/SpringExample01/welcome.html
Route: welcome
View: welcome.jsp
Controller: WelcomeController => gọi view welcome.jsp
- Gui du lieu tu controller sang view
- Tao 1 model => gui du lieu sang view
- Hoc cach phan tich URL.
- http://localhost:8080/SpringExample01/news/{tieu-de-bai-viet}.html
=====================================
FORM =>GET/POST
#dispatcher-servlet.xml
<?xml version='1.0' encoding='UTF-8' ?>
<!-- was: <?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.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
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc">
<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/>
<context:component-scan base-package="aptech.controller"></context:component-scan>
<mvc:annotation-driven/>
<!--
Most controllers will use the ControllerClassNameHandlerMapping above, but
for the index controller we are using ParameterizableViewController, so we must
define an explicit mapping for it.
-->
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="index.html">indexController</prop>
</props>
</property>
</bean>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/views/"
p:suffix=".jsp" />
<!--
The index controller.
-->
<bean name="indexController"
class="org.springframework.web.servlet.mvc.ParameterizableViewController"
p:viewName="index" />
</beans>
#cal.jsp
<%--
Document : cal
Created on : Oct 9, 2020, 7:26:58 PM
Author : student
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Result: ${result}!</h1>
</body>
</html>
#index.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!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>Welcome to Spring Web MVC project</title>
</head>
<body>
<p>Hello! This is the default welcome page for a Spring Web MVC project.</p>
<p><i>To display a different welcome page for this project, modify</i>
<tt>index.jsp</tt> <i>, or create your own welcome page then change
the redirection in</i> <tt>redirect.jsp</tt> <i>to point to the new
welcome page and also update the welcome-file setting in</i>
<tt>web.xml</tt>.</p>
</body>
</html>
#news.jsp
<%--
Document : news
Created on : Oct 9, 2020, 7:24:23 PM
Author : student
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World ${hrefParam}!</h1>
</body>
</html>
#welcome.jsp
<%--
Document : welcome.jsp
Created on : Oct 9, 2020, 6:51:21 PM
Author : student
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!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>JSP Page</title>
</head>
<body>
<h1>Hello World ${msg}!</h1>
<ul>
<li>Name: ${student.name}</li>
<li>RollNo: ${student.rollno}</li>
<li>Address: ${student.address}</li>
<li>Gender: ${student.gender}</li>
<li>Birthday: ${student.birthday}</li>
</ul>
</body>
</html>
#Student.java
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package aptech.model;
/**
*
* @author student
*/
public class Student {
String name, rollno, address, birthday, gender;
public Student() {
}
public Student(String name, String rollno, String address, String birthday, String gender) {
this.name = name;
this.rollno = rollno;
this.address = address;
this.birthday = birthday;
this.gender = gender;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getRollno() {
return rollno;
}
public void setRollno(String rollno) {
this.rollno = rollno;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getBirthday() {
return birthday;
}
public void setBirthday(String birthday) {
this.birthday = birthday;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
}
#WelcomeController.java
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package aptech.controller;
import aptech.model.Student;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
*
* @author student
*/
@Controller
@RequestMapping(value = "/")
public class WelcomeController {
@RequestMapping(value = "/welcome", method = RequestMethod.GET)
public String showWelcomePage(ModelMap modelMap) {
String msg = "TRAN VAN DIEP";
modelMap.put("msg", msg);
Student std = new Student("TRAN VAN A", "R001", "Nam Dinh", "06/06/1996", "Nam");
modelMap.put("student", std);
return "welcome";
}
@RequestMapping(value = "/trang-chu", method = RequestMethod.GET)
public String showHome() {
return "index";
}
@RequestMapping(value = "/news/{href_param}", method = RequestMethod.GET)
public String showDetailNews(@PathVariable("href_param") String hrefParam, ModelMap modelMap) {
modelMap.put("hrefParam", hrefParam);
return "news";
}
@RequestMapping(value = "/cal/x/{x}/y/{y}", method = RequestMethod.GET)
public String showCalculator(@PathVariable("x") float x, @PathVariable("y") float y, ModelMap modelMap) {
float result = x + y;
modelMap.put("result", result);
return "cal";
}
}
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