struts2 json

1 json定义 参考 http://www.json.org/
  json插件 参考 https://cwiki.apache.org/WW/json-plugin.html
导入struts2-json-plugin-2.1.8.1.jar 到lib目录下
改包下struts-plusin.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="json-default" extends="struts-default">
        <result-types>
            <result-type name="json" class="org.apache.struts2.json.JSONResult"/>
        </result-types>
        <interceptors>
            <interceptor name="json" class="org.apache.struts2.json.JSONInterceptor"/>
        </interceptors>
    </package>
</struts>

struts.xml配置

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
	<package name="struts2.1" extends="json-default">		
		<action name="getXmlAction" class="com.test.action.xml.GetXmlAction"></action>
		<action name="getJsonAction" class="com.test.action.json.GetJsonAction">
			<result name="success" type="json">
			     <!--不包含序列化的属性-->
				<param name="excludeProperties">myAge</param>
				<!--父类序列化的属性-->
				<param name="ignoreHierarchy">false</param>
				<!--不包含空值属性-->
				<param name="excludeNullProperties">true</param>
				<!-- 从person根开始序列化
				<param name="root">person</param>
				-->
			</result>
		</action>
		
		<action name="getGsonAction" class="com.test.action.json.GetGsonAction"></action>
	
	</package>
	
</struts> 

2.action GetJsonAction.java以及javabean Person.java编写

package com.test.action.json;

import java.util.Date;

import org.apache.struts2.json.annotations.JSON;

import com.opensymphony.xwork2.ActionSupport;

public class GetJsonAction extends ActionSupport
{
	private String name;

	private int id;

	private int age;

	private String address;
	
	private Date date; 
	
	private Person person = new Person();
	
	public Person getPerson()
	{
		return person;
	}
	public void setPerson(Person person)
	{
		this.person = person;
	}
    //format日期格式化格式  name重命名   serialize=false不序列化次属性
	@JSON(format = "yyyy-MM-dd", name = "myDate", serialize = false)
	public Date getDate()
	{
		return date;
	}
	public void setDate(Date date)
	{
		this.date = date;
	}
	public String getName()
	{
		return name;
	}
	public void setName(String name)
	{
		this.name = name;
	}
	@JSON(serialize = false)
	public int getId()
	{
		return id;
	}
	public void setId(int id)
	{
		this.id = id;
	}
	@JSON(name = "myAge")
	public int getAge()
	{
		return age;
	}
	public void setAge(int age)
	{
		this.age = age;
	}
	@JSON(name = "myAddress")
	public String getAddress()
	{
		return address;
	}
	public void setAddress(String address)
	{
		this.address = address;
	}
	@Override
	public String execute() throws Exception
	{
		//zhangsan
		Person person1 = new Person();
		person1.setId(1);
		person1.setName("zhangsan");
		person1.setAge(20);
		person1.setAddress("shanghai");
		person1.setDate(new Date());
		
		//lisi
		Person person2 = new Person();
		person2.setId(2);
		person2.setName("lisi");
		person2.setAge(30);
		person2.setAddress("tianjin");
		person2.setDate(new Date());
		
		if("zhangsan".equals(this.name))
		{
			this.id = person1.getId();
			this.age = person1.getAge();
			this.address = person1.getAddress();
			this.date = person1.getDate();
		}
		else
		{
			this.id = person2.getId();
			this.age = person2.getAge();
			this.address = person2.getAddress();
			this.date = person2.getDate();
		}
		
		return SUCCESS;
	}
}

/**
 * 
 */
package com.test.action.json;

import java.util.Date;

/**
 * @author Administrator
 * 
 */
public class Person {
	private int id;
	private String name;
	private int age;
	private String address;
	private Date date;
	

	public Date getDate() {
		return date;
	}

	public void setDate(Date date) {
		this.date = date;
	}

	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 int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}

}