Struts与Extjs的整合

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struts ajax json struts与Extjs extjs

Struts与Extjs的整合

1、引入以下Jar包

commons-fileupload-1.2.2.jar
commons-io-2.0.1.jar
commons-lang3-3.1.jar
dom4j-1.6.1.jar
freemarker-2.3.19.jar
javassist-3.11.0.GA.jar
ognl-3.0.6.jar
struts2-core-2.3.12.jar
struts2-json-plugin-2.3.12.jar
xwork-core-2.3.12.jar

2、建立Person类

package com.hpu.pojo;

public class Person {
	private int id;
	private String name;
	private String number;
	
	public Person(int id , String name , String number) {
		this.id = id;
		this.name = name;
		this.number = number;
	}

	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 String getNumber() {
		return number;
	}

	public void setNumber(String number) {
		this.number = number;
	}
}

3、配置struts.xml与web.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC 
		"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" 
		"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
	<package name="struts2" namespace="/" extends="json-default">
		<action name="getPerson" class="com.hpu.action.PersonAction">
			<result type="json"/>
		</action>
		
		<action name="show" class="com.hpu.action.PersonAction" method="in" >
			<result>/in.jsp</result>
		</action>
	</package>
	
</struts>

<filter>
	<filter-name>struts2</filter-name>
	<filter-class>
	org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
	</filter-class>
</filter>
<filter-mapping>
	<filter-name>struts2</filter-name>
	<url-pattern>/*</url-pattern>
</filter-mapping>

4、编写处理请求的PersonAction

package com.hpu.action;

import java.util.ArrayList;
import java.util.List;

import com.hpu.pojo.Person;
import com.opensymphony.xwork2.ActionSupport;

public class PersonAction extends ActionSupport {
	
	private List<Person> persons;

	public List<Person> getPersons() {
		return persons;
	}

	public void setPersons(List<Person> persons) {
		this.persons = persons;
	}

	@Override
	public String execute() throws Exception {
		Person person1 = new Person(1, "zhangsan", "15426897458");
		Person person2 = new Person(2, "lisi", "15236989636");
		persons = new ArrayList<Person>();
		persons.add(person1);
		persons.add(person2);
		return SUCCESS;
	}
}

5、写请求页面

<!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>Test.html</title>
	<link rel="stylesheet" type="text/css" href="../ext_js3/resources/css/ext-all.css"></link>
	<script type="text/javascript" src="../ext_js3/adapter/ext/ext-base.js"></script>
	<script type="text/javascript" src="../ext_js3/ext-all-debug.js"></script>
	<script type="text/javascript" src="Test.js"></script>
</head>
<body>
	<div id="show"></div>
</body>
</html>

6、编写js文件

Ext.onReady(function() {
	Ext.BLANK_IMAGE_URL = "../ext_js3/resources/images/default/s.gif";
	
	
	var Person = new Ext.data.Record.create([
		{name:"id",mapping:"id"},
		{name:"name",mapping:"name"},
		{name:"number",mapping:"number"}
	]);

	// Json存储器
	var store = new Ext.data.Store({
	
		url:"getPerson.action",
		reader:new Ext.data.JsonReader(
			{root:"persons"},
			Person
		)
	});
	
	store.load();
	
	// 使用ColumnModel
	var columnModel = new Ext.grid.ColumnModel({
		columns:[
			{header:"id",dataIndex:"id",sortable:true},
			{header:"name",dataIndex:"name",sortable:true},
			{header:"number",dataIndex:"number",sortable:true}
		]
	});
	
	new Ext.grid.GridPanel({
		id:"myPanel",
		title:"gridPanel",
		width:400,
		height:300,
		frame:true,
		applyTo:"show",
		store:store,
		
		// 设置可排序
		cm:columnModel,
		autoExpandColumn:2
	});
})

7、效果