android Json解析全，androidJson解析,方式一 1、实体类 pu

android Json解析全，androidJson解析,方式一 1、实体类 pu

方式一

1、实体类

public class Person {    private int age;    private String name;    public Person(int age, String name) {        super();        this.age = age;        this.name = name;    }    @Override    public String toString() {        return "Person [age=" + age + ", name=" + name + "]";    }    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public Person() {        // TODO Auto-generated constructor stub    }}```2、服务类```javapublic class JsonList {    public JsonList() {        // TODO Auto-generated constructor stub    }    public static List<Person> getList() {        List<Person> list = new ArrayList<Person>();        list.add(new Person(1002,"李四2"));        list.add(new Person(1003,"李四3"));        list.add(new Person(1001,"李四1"));        return list;    }    public static Person getPerson(){        return new Person(1002,"李四2");     }}

import net.sf.json.JSON;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import net.sf.json.JSONSerializer;public class JsonTools {    public JsonTools() {        // TODO Auto-generated constructor stub    }    public static String getString(Person person) {        JSON json = JSONSerializer.toJSON(JsonList.getPerson());        return json.toString();    }    /**     *      * @param msgString     * @return     */    public static Person getPerson(String msgString) {        Person person = new Person();        JSONArray array = new JSONArray();        array.add(msgString);        JSONObject obj = array.getJSONObject(0);        // System.out.println(obj.get("age"));        // System.out.println(obj.get("name"));        person.setAge(obj.getInt("age"));        person.setName(obj.getString("name"));        return person;    }    public static String getListString(List<Person> listPersons) {        JSON json = JSONSerializer.toJSON(listPersons);        return json.toString();    }    /**     * 将一个json格式的字符串转换成行对应的对象     * @param str     * @return     */    public static List<Person> getPersons(String str) {        List<Person> list = new ArrayList<Person>();        JSONArray array = new JSONArray();        array.add(str);        JSONArray array2 = array.getJSONArray(0);        for (int i = 0; i <array2.size(); i++) {            JSONObject jsonObject =  array2.getJSONObject(i);            Person person = new Person();            person.setAge(jsonObject.getInt("age"));            person.setName(jsonObject.getString("name"));            list.add(person);        }        return list;    }}

方式二 1、实体类

public class Person {    private int age;    private String name;    public Person(int age, String name) {        super();        this.age = age;        this.name = name;    }    @Override    public String toString() {        return "Person [age=" + age + ", name=" + name + "]";    }    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public Person() {        // TODO Auto-generated constructor stub    }}

2、服务类

public class JsonList {    public JsonList() {        // TODO Auto-generated constructor stub    }    public static List<Person> getList() {        List<Person> list = new ArrayList<Person>();        list.add(new Person(1002,"李四2"));        list.add(new Person(1003,"李四3"));        list.add(new Person(1001,"李四1"));        return list;    }    public static Person getPerson(){        return new Person(1002,"李四2");     }}

import net.sf.json.JSON;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import net.sf.json.JSONSerializer;public class JsonTools {    public JsonTools() {        // TODO Auto-generated constructor stub    }    public static String getString(Person person) {        JSON json = JSONSerializer.toJSON(JsonList.getPerson());        return json.toString();    }    /**     *      * @param msgString     * @return     */    public static Person getPerson(String msgString) {        Person person = new Person();        JSONArray array = new JSONArray();        array.add(msgString);        JSONObject obj = array.getJSONObject(0);        // System.out.println(obj.get("age"));        // System.out.println(obj.get("name"));        person.setAge(obj.getInt("age"));        person.setName(obj.getString("name"));        return person;    }    public static String getListString(List<Person> listPersons) {        JSON json = JSONSerializer.toJSON(listPersons);        return json.toString();    }    /**     * 将一个json格式的字符串转换成行对应的对象     * @param str     * @return     */    public static List<Person> getPersons(String str) {        List<Person> list = new ArrayList<Person>();        JSONArray array = new JSONArray();        array.add(str);        JSONArray array2 = array.getJSONArray(0);        for (int i = 0; i <array2.size(); i++) {            JSONObject jsonObject =  array2.getJSONObject(i);            Person person = new Person();            person.setAge(jsonObject.getInt("age"));            person.setName(jsonObject.getString("name"));            list.add(person);        }        return list;    }}

方式三

1、实体类

public class Person {    private String name;    private int age;    private String address;    public String getName() {        return name;    }    public Person(String name, int age, String address) {        super();        this.name = name;        this.age = age;        this.address = address;    }    @Override    public String toString() {        return "Person [name=" + name + ", age=" + age + ", address=" + address                + "]";    }    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;    }    public Person() {        // TODO Auto-generated constructor stub    }}

2、服务类

import com.android.domain.Person;import com.google.gson.Gson;import com.google.gson.reflect.TypeToken;public class GsonTools {    public GsonTools() {        // TODO Auto-generated constructor stub    }    public static String createGsonString(Object object) {        Gson gson = new Gson();        String gsonString = gson.toJson(object);        return gsonString;    }    public static <T> T changeGsonToBean(String gsonString, Class<T> cls) {        Gson gson = new Gson();        T t = gson.fromJson(gsonString, cls);        return t;    }    public static <T> List<T> changeGsonToList(String gsonString, Class<T> cls) {        Gson gson = new Gson();        List<T> list_person = gson.fromJson(gsonString,                new TypeToken<List<T>>() {                }.getType());        return list_person;    }    public static List<Map<String, Object>> changeGsonToListMaps(String gsonString) {        List<Map<String, Object>> list = null;        Gson gson = new Gson();        list = gson.fromJson(gsonString,                new TypeToken<List<Map<String, Object>>>() {                }.getType());        return list;    }}

方式四

1、实体类

public class Person {    private String name;    private int age;    private String address;    public String getName() {        return name;    }    public Person(String name, int age, String address) {        super();        this.name = name;        this.age = age;        this.address = address;    }    @Override    public String toString() {        return "Person [name=" + name + ", age=" + age + ", address=" + address                + "]";    }    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;    }    public Person() {        // TODO Auto-generated constructor stub    }}

2、服务类

import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.TypeReference;import com.alibaba.fastjson.asm.Type;import com.alibaba.fastjson.util.TypeUtils;public class FastJsonTools {    public FastJsonTools() {        // TODO Auto-generated constructor stub    }    public static String createJsonString(Object object) {        String jsonString = JSON.toJSONString(object);        return jsonString;    }    public static <T> T createJsonBean(String jsonString, Class<T> cls) {        T t = JSON.parseObject(jsonString, cls);        return t;    }    public static <T> List<T> createJsonToListBean(String jsonString,            Class<T> cls) {        List<T> list = null;        list = JSON.parseArray(jsonString, cls);        return list;    }    /**     * @param jsonString     * @return     */    public static List<Map<String, Object>> createJsonToListMap(            String jsonString) {        List<Map<String, Object>> list2 = JSON.parseObject(jsonString,                new TypeReference<List<Map<String, Object>>>() {                });        return list2;    }    /**     * @param args     */    public static void main(String[] args) {        // TODO Auto-generated method stub        // Person person1 = new Person("张三1", 24, "北京1");        // Person person2 = new Person("张三2", 23, "北京2");        // List<Person> list = new ArrayList<Person>();        // list.add(person1);        // list.add(person2);        List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();        Map<String, Object> map = new HashMap<String, Object>();        map.put("name", "jack");        map.put("age", 23);        Map<String, Object> map2 = new HashMap<String, Object>();        map2.put("name", "rose");        map2.put("age", 24);        list.add(map);        list.add(map2);        String jsonString = JSON.toJSONString(list);        System.out.println(jsonString);        // JSON.parseArray(arg0, arg1)        List<Map<String, Object>> list2 = JSON.parseObject(jsonString,                new TypeReference<List<Map<String, Object>>>() {                });        // List<Person> lists = JSON.parseArray(arg0, arg1);        System.out.println(list2.toString());    }}