JSon_零基础_006_将JSon格式的字符串转换为Java对象

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 java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

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;
import net.sf.json.JSONObject;

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 */
        getJsonStringToBean();
        out.flush();
        out.close();
    }
    
    /**第02步：将JSon类型字符串转换为：po类*/
    public void getJsonStringToBean(){
        String jsonString="{\"name\":\"zhang3\",\"sex\":\"nan\",\"age\":\"30\"}";
        JSONObject jsonObject=JSONObject.fromObject(jsonString);
        pif01=(PersonInfoPo)JSONObject.toBean(jsonObject,PersonInfoPo.class); 
        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.getJsonStringToBean();
    }

}