JSon_零基础_007_将JSon格式的"数组"字符串转换为Java对象"数组"

package com.west.webcourse.po;

/**
 * 第01步：编写bean类，
 * 下一步com.west.webcourse.servlet.JavaBeanToJOSNString.java
 */
public class PersonInfoPo {
    private String name;
    private int age;
    private String sex;
    
    public PersonInfoPo(){}
    
    public int getAge() {
        return age;
    }

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

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }


    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
    
}

package com.west.webcourse.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.west.webcourse.po.PersonInfoPo;

import net.sf.json.JSONArray;

public class JavaBeanToJOSNString extends HttpServlet {

    PersonInfoPo pif = new PersonInfoPo();
    PersonInfoPo pif01 = new PersonInfoPo();

    /** 第03步：重写doGet()方法,下一步：测试 */
    @Override
    protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=utf-8");
        PrintWriter out = response.getWriter();
        System.out.println("转换");
        out.print("转换后的JSON字符串：<br/>");
        /** 向浏览器发送JSon格式的字符串 */
        getJsonStringToBeans();
        out.flush();
        out.close();
    }

    /** 第02步：将JSon类型字符串转换为：po类 */
    public void getJsonStringToBeans() {
        String jsonString = "[{\"name\":\"zhang3\",\"sex\":\"nan\",\"age\":\"30\"},{\"name\":\"zhang4\",\"sex\":\"nan4\",\"age\":\"304\"}]";
        System.out.println(jsonString);
        /*2.1:转换成json数组*/
        JSONArray allJsons = JSONArray.fromObject(jsonString);
        /*2.2:讲json数组转换成PersonInfoPo数组*/
        PersonInfoPo[] allBeans = (PersonInfoPo[]) allJsons.toArray(allJsons, PersonInfoPo.class);
        for (Object object : allBeans) {
            pif01 = (PersonInfoPo) object;
            System.out.println("姓名：" + pif01.getName() + "：性别："
                    + pif01.getSex() + "：年龄：" + pif01.getAge());
        }
    }

}

package com.west.webcourse.servlet;
/**
 * 第04步：测试
 * 下一步：配置web.xml
 */
import org.junit.BeforeClass;
import org.junit.Test;

public class JavaBeanToJOSNStringTest {
    static JavaBeanToJOSNString js;
    @BeforeClass
    public static void setUpBeforeClass() throws Exception {
        js=new JavaBeanToJOSNString();
    }

    @Test
    public void jsonStringToBean() {
        js.getJsonStringToBeans();
    }

}