Java中Json解析

首先准備一個JSON格式的字符串
* String JsonStr = "{object:{persons:" +
"[{name:'呵呵',image:'http://10.0.159.132:8080/Web/s1.png'}," +
"{name:'哈哈',image:'http://10.0.159.132:8080/Web/s1.png'}," +
"{name:'嘿嘿',image:'http://10.0.159.132:8080/Web/s2.jpg'}]}}";

 

* 然后定義一個Person類
*
*

 

class Person{
    private String name,image;

    public String getName() {
        return name;
    }

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

    public String getImage() {
        return image;
    }

    public void setImage(String image) {
        this.image = image;
    }
    
}

 

下面是一個Json解析的程序代碼

class MyDay17Xml {
    //json字符串
    static String JsonStr = "{object:{persons:" +
            "[{name:'呵呵',image:'http://10.0.159.132:8080/Web/s1.png'}," +
            "{name:'哈哈',image:'http://10.0.159.132:8080/Web/s1.png'}," +
            "{name:'嘿嘿',image:'http://10.0.159.132:8080/Web/s2.jpg'}]}}";

    public static void main(String []args) throws JSONException{
        List<Person> list=jsonStrToList(JsonStr);
        System.out.println(list.size());
    }
    /**
     * 
     * 
     * 
     */
    public static List<Person> jsonStrToList(String jsonStr) throws JSONException{
        List<Person> list=new ArrayList<Person>();
        
        //通過字符串，獲得最外部的json對象
        JSONObject jsonObj=new JSONObject(jsonStr);
        //通過屬性名，獲得內部的對象
        JSONObject jsonPersons=jsonObj.getJSONObject("object");
        //獲得json對象組
        JSONArray arr=jsonPersons.getJSONArray("persons");
        for(int i=0;i<arr.length();i++){
            //循環對象，並通過getString("屬性名");來獲得值
            JSONObject tempJson=arr.getJSONObject(i);
            Person person=new Person();
            
            person.setName(tempJson.getString("name"));
            person.setImage(tempJson.getString("image"));
            list.add(person);
        }
        return list;
        
    }
    
}