【第20篇】org.json字符串转换，对象的转换，泛型的转换以及JSONStringer和JSONTokener的使用

package ivyy.taobao.com.domain.orgjson;import java.util.ArrayList;import java.util.List;import ivyy.taobao.com.entity.Address;import ivyy.taobao.com.entity.Student;import net.sf.json.JSONFunction;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import org.json.JSONStringer;import org.json.JSONTokener;import org.json.JSONUtil;/** *@DEMO:json *@Java：OrgJson.java *@Date:2015-1-19下午12:28:31 *@Author:龙叔 *@Email:[e-mail] *@Weibo:http://weibo.com/jilongliang *@Version:1.0 *@Description： *org.json字符串转成JSON *org.json字符串转换成对象 *org.json字符串转成List数组泛型 *org.json的JSONStringer的使用 *org.json的JSONTokener使用 */@SuppressWarnings("all")public class OrgJson {public static void main(String[] args)throws Exception {//String2Json();//String2Object();//String2List1();//String2List2();//JSONFunction();String json=JSONStringer();System.out.println(json);}/*** * org.json字符串转成JSON * @throws Exception */private static void String2Json()throws Exception{String jsonStr="{\"age\":190,\"sex\":\"男\",\"userName\":\"周伯通\"}";//转换成JSONObject数据JSONObject jsonObj=new JSONObject(jsonStr);Integer age=jsonObj.getInt("age");//获取ageString sex=jsonObj.getString("sex");//获取sexString userName=jsonObj.get("userName").toString();//获取userNameSystem.out.println(userName);System.out.println(sex);System.out.println(age);}/*** * org.json字符串转换成对象 * JSONUtil * @throws Exception */private static void String2Object()throws Exception{//String jsonStr="{\"age\":190,\"sex\":\"男\",\"userName\":\"周伯通\",\"birthday\":\"1888-1-1\",\"address\":\"洛阳\",\"email\":\"[e-mail]\"}";StringBuffer buff=new StringBuffer();buff.append("{");buff.append("\"age\":").append("198").append(",");buff.append("\"userName\":").append("\"周伯通\"").append(",");buff.append("\"sex\":").append("\"男\"").append(",");buff.append("\"birthday\":").append("\"1888-1-1\"").append(",");buff.append("\"address\":").append("\"洛阳\"").append(",");buff.append("\"email\":").append("\"[e-mail]\"");buff.append("}");String jsonStr=buff.toString();Student st=(Student)JSONUtil.Json2Bean(jsonStr, Student.class);System.out.println(st.getUserName());System.out.println(st.getAddress());}/*** * org.json字符串转成List数组泛型 * @throws Exception */private static void String2List1()throws Exception{StringBuffer buff=new StringBuffer();//String jsonStr="{\"age\":190,\"sex\":\"男\",\"userName\":\"周伯通\",\"birthday\":\"1888-1-1\",\"address\":\"洛阳\",\"email\":\"[e-mail]\"}";buff.append("[");buff.append("{");buff.append("\"age\":").append("198").append(",");buff.append("\"userName\":").append("\"周伯通\"").append(",");buff.append("\"sex\":").append("\"男\"").append(",");buff.append("\"birthday\":").append("\"1888-1-1\"").append(",");buff.append("\"address\":").append("\"洛阳\"").append(",");buff.append("\"email\":").append("\"[e-mail]\"");buff.append("},");buff.append("{");buff.append("\"age\":").append("198").append(",");buff.append("\"userName\":").append("\"郭靖\"").append(",");buff.append("\"sex\":").append("\"男\"").append(",");buff.append("\"birthday\":").append("\"1888-1-1\"").append(",");buff.append("\"address\":").append("\"洛阳\"").append(",");buff.append("\"email\":").append("\"[e-mail]\"");buff.append("}");buff.append("]");String jsonStr=buff.toString();//转换成JSONArray数据JSONArray jarr=new JSONArray(jsonStr);for (int i = 0; i < jarr.length(); i++) {JSONObject jsonObj=(org.json.JSONObject) jarr.get(i);Integer age=jsonObj.getInt("age");//获取ageString sex=jsonObj.getString("sex");//获取sexString userName=jsonObj.get("userName").toString();//获取userNameSystem.out.println(userName);System.out.println(sex);System.out.println(age);}}/*** * org.json字符串转成List数组泛型 * @throws Exception */private static void String2List2()throws Exception{StringBuffer buff=new StringBuffer();//String jsonStr="{\"age\":190,\"sex\":\"男\",\"userName\":\"周伯通\",\"birthday\":\"1888-1-1\",\"address\":\"洛阳\",\"email\":\"[e-mail]\"}";buff.append("[");buff.append("{");buff.append("\"age\":").append("198").append(",");buff.append("\"userName\":").append("\"周伯通\"").append(",");buff.append("\"sex\":").append("\"男\"").append(",");buff.append("\"birthday\":").append("\"1888-1-1\"").append(",");buff.append("\"address\":").append("\"洛阳\"").append(",");buff.append("\"email\":").append("\"[e-mail]\"");buff.append("},");buff.append("{");buff.append("\"age\":").append("198").append(",");buff.append("\"userName\":").append("\"郭靖\"").append(",");buff.append("\"sex\":").append("\"男\"").append(",");buff.append("\"birthday\":").append("\"1888-1-1\"").append(",");buff.append("\"address\":").append("\"洛阳\"").append(",");buff.append("\"email\":").append("\"[e-mail]\"");buff.append("}");buff.append("]");String jsonStr=buff.toString();//转换成JSONArray数据JSONArray jarr=new JSONArray(jsonStr);for (int i = 0; i < jarr.length(); i++) {JSONObject jsonObj=(JSONObject) jarr.get(i);//获取JSONObject//转换成Student对象Student stu=(Student)JSONUtil.Json2Bean(jsonObj.toString(), Student.class);System.out.println(stu.getUserName());System.out.println(stu.getSex());System.out.println(stu.getAge());System.out.println(stu.getEmail());System.out.println(stu.getAddress());}} /** * org.json的JSONStringer的使用 * @return */private static String JSONStringer(){JSONStringer jsonStringer = new JSONStringer();try {jsonStringer.object();jsonStringer.key("userName");jsonStringer.value("周伯通");jsonStringer.key("id");jsonStringer.value(20150119);jsonStringer.key("email");jsonStringer.value("[e-mail]");jsonStringer.endObject();} catch (JSONException e) {e.printStackTrace();}return jsonStringer.toString();}/*** * org.json的JSONTokener使用 */private static void JSONTokener() {String jsonStr = "{\"age\":190,\"sex\":\"男\",\"userName\":\"周伯通\"}";JSONTokener jsonTokener = new JSONTokener(jsonStr);JSONObject jsonObj=null;String userName = "",sex="";Integer age=null;try {jsonObj = (JSONObject) jsonTokener.nextValue();userName = jsonObj.getString("userName");age = jsonObj.getInt("age");sex = jsonObj.getString("sex");System.out.println(userName+"\t"+age+"\t"+sex);} catch (JSONException e) {e.printStackTrace();}}/*** * 通过json-lib的JSONFunction结合org.json的JSONArray一起使用 * @throws JSONException */public static void JSONFunction() throws JSONException {  //1、创建对象List        List list = new ArrayList();          list.add(new Integer(1));          list.add(new Boolean(true));          list.add(new Character('布'));          list.add(new char[] { '东', '升', '布', '艺' });          list.add(null);          list.add("json");          list.add(new String[] { "东升", "布", "艺" });          list.add(new JSONFunction(new String[] { "i" }, "alert(i)"));          list.add(new Address("中国", "广东省", 1988, "527526","闻莺路"));        System.out.println(list);        //2、list转JSONArray          JSONArray jsArr = new JSONArray(list);          /*         * 注：org.json不支持list中非JSON对象与数组对象外的对象，会直接调用对象的toString方法         */          System.out.println(jsArr.toString(4));          //3、从JSON串到JSONArray          JSONArray jsArr1 = new JSONArray(jsArr.toString());            //4、--从JSONArray里读取          //print: json          System.out.println(((JSONArray) jsArr1.get(6)).get(0));            //5、不能正确读取对象的信息 print: address.city = bean.Address@1cf8583          System.out.println("address.city = " + jsArr1.get(8));          System.out.println("\n");      }  }

package ivyy.taobao.com.entity;import java.io.Serializable;import com.google.gson.annotations.Expose;/** * Gson gson=new GsonBuilder().excludeFieldsWithoutExposeAnnotation().create(); * 创建Gson对象,没有@Expose注释的属性将不会被序列化 * serialize序列化 默认 true * deserialize反序列化 默认 true * @author liangjilong * @Email:[e-mail] */public class Address implements Serializable{@Expose(serialize=false)// 序列化  /Address类已经序列化private int id;@Expose(deserialize=false)// 反序列化private String country;//国家private String province;//省份private String city;//城市private String street;//街道private String district;//地区private String cityCode;//邮政编码private String streetNumber;//街道号private String weibo;//微博public Address() {}public Address(String country, String province, int id, String cityCode,String streetNumber) {System.out.println(country+"\t"+province+"\t"+id+cityCode+"\t"+streetNumber);}public Address(int id,String country) {this.id=id;this.country=country;}public String getCityCode() {return cityCode;}public void setCityCode(String cityCode) {this.cityCode = cityCode;}public String getStreetNumber() {return streetNumber;}public void setStreetNumber(String streetNumber) {this.streetNumber = streetNumber;}public String getStreet() {return street;}public void setStreet(String street) {this.street = street;}public String getDistrict() {return district;}public void setDistrict(String district) {this.district = district;}public String getCity() {return city;}public void setCity(String city) {this.city = city;}public String getProvince() {return province;}public void setProvince(String province) {this.province = province;}public int getId() {return id;}public void setId(int id) {this.id = id;}public String getCountry() {return country;}public void setCountry(String country) {this.country = country;}public String getWeibo() {return weibo;}public void setWeibo(String weibo) {this.weibo = weibo;}}

package ivyy.taobao.com.entity;import java.io.Serializable;/** *@Author:liangjl *@Date:2014-12-19 *@Version:1.0 *@Description: */public class Student implements Serializable{private Integer age;private String sex;private String userName;private String birthday;private String address;private String email;public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public String getUserName() {return userName;}public void setUserName(String userName) {this.userName = userName;}public String getBirthday() {return birthday;}public void setBirthday(String birthday) {this.birthday = birthday;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}}