JSONObject使用方法详解

/** * 项目名称：tools * 项目包名：com.songfayuantools.json * 创建时间：2017年7月31日上午11:58:51 * 创建者：Administrator-宋发元 * 创建地点： */package com.songfayuantools.json;import com.songfayuantools.entity.UserInfo;import net.sf.json.JSON;import net.sf.json.JSONObject;import net.sf.json.xml.XMLSerializer;/** * 描述：JSONObject使用方法详解 *    JSONObject-lib包是一个beans,collections,maps,java arrays和xml和JSON互相转换的包。 * @author songfayuan * 2017年7月31日上午11:58:51 */public class Json {/** * 描述：json字符串转java代码 * @author songfayuan * 2017年8月2日下午2:24:47 */public static void jsonToJava() {System.out.println("json字符串转java代码");String jsonStr = "{\"password\":\"123456\",\"username\":\"张三\"}";JSONObject jsonObject = JSONObject.fromObject(jsonStr);String username = jsonObject.getString("username");String password = jsonObject.getString("password");System.err.println("json--->java \n username="+username+"\t passwor="+password);}/** * 描述：java代码封装为json字符串 * @author songfayuan * 2017年8月2日下午2:30:58 */public static void javaToJSON() {System.out.println("java代码封装为json字符串");JSONObject jsonObject = new JSONObject();jsonObject.put("username", "宋发元");jsonObject.put("age", 24);jsonObject.put("sex", "男");System.out.println("java--->json \n " + jsonObject.toString());}/** * 描述：json字符串转xml字符串 * @author songfayuan * 2017年8月2日下午2:56:30 */public static void jsonToXML() {System.out.println("json字符串转xml字符串");String jsonStr = "{\"username\":\"宋发元\",\"password\":\"123456\",\"age\":\"24\"}";JSONObject jsonObject = JSONObject.fromObject(jsonStr);XMLSerializer xmlSerializer = new XMLSerializer();xmlSerializer.setRootName("user_info");xmlSerializer.setTypeHintsEnabled(false);String xml = xmlSerializer.write(jsonObject);System.out.println("json--->xml \n" + xml);}/** * 描述：xml字符串转json字符串 * @author songfayuan * 2017年8月2日下午3:19:25 */public static void xmlToJSON() {System.out.println("xml字符串转json字符串");String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><user_info><password>123456</password><username>宋发元</username></user_info>";XMLSerializer xmlSerializer = new XMLSerializer();JSON json = xmlSerializer.read(xml);System.out.println("xml--->json \n" + json.toString());}/** * 描述：javaBean转json字符串 * @author songfayuan * 2017年8月2日下午3:39:10 */public static void javaBeanToJSON() {System.out.println("javaBean转json字符串");UserInfo userInfo = new UserInfo();userInfo.setUsername("宋发元");userInfo.setPassword("123456");JSONObject jsonObject = JSONObject.fromObject(userInfo);System.out.println("JavaBean-->json \n" + jsonObject.toString());}/** * 描述：javaBean转xml字符串 * @author songfayuan * 2017年8月2日下午3:48:08 */public static void javaBeanToXML() {System.out.println("javaBean转xml字符串");UserInfo userInfo = new UserInfo();userInfo.setUsername("songfayuan");userInfo.setPassword("66666");JSONObject jsonObject = JSONObject.fromObject(userInfo);XMLSerializer xmlSerializer = new XMLSerializer();String xml = xmlSerializer.write(jsonObject, "UTF-8");System.out.println("javaBean--->xml \n" + xml);}public static void main(String args[]) {//jsonToJava();//javaToJSON();//jsonToXML();//xmlToJSON();//javaBeanToJSON();javaBeanToXML();}}

实体

/** * 项目名称：tools * 项目包名：com.songfayuantools.entity * 创建时间：2017年8月2日下午3:34:46 * 创建者：Administrator-宋发元 * 创建地点： */package com.songfayuantools.entity;/** * 描述：实体 *  * @author songfayuan 2017年8月2日下午3:34:46 */public class UserInfo {public String username;public String password;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}}

maven引入资源

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>tools</groupId>  <artifactId>tools</artifactId>  <packaging>war</packaging>  <version>0.0.1-SNAPSHOT</version>  <name>tools Maven Webapp</name>  <url>http://maven.apache.org</url>  <dependencies>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>3.8.1</version>      <scope>test</scope>    </dependency>        <!-- <dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.8</version></dependency> --><!-- https://mvnrepository.com/artifact/net.sf.json-lib/json-lib --><dependency>    <groupId>net.sf.json-lib</groupId>    <artifactId>json-lib</artifactId>    <version>2.4</version>    <classifier>jdk15</classifier></dependency><!-- https://mvnrepository.com/artifact/commons-lang/commons-lang --><dependency>    <groupId>commons-lang</groupId>    <artifactId>commons-lang</artifactId>    <version>2.6</version></dependency><!-- https://mvnrepository.com/artifact/commons-logging/commons-logging --><dependency>    <groupId>commons-logging</groupId>    <artifactId>commons-logging</artifactId>    <version>1.2</version></dependency><!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils --><dependency>    <groupId>commons-beanutils</groupId>    <artifactId>commons-beanutils</artifactId>    <version>1.9.3</version></dependency><!-- https://mvnrepository.com/artifact/commons-collections/commons-collections --><dependency>    <groupId>commons-collections</groupId>    <artifactId>commons-collections</artifactId>    <version>3.2.1</version></dependency><!-- https://mvnrepository.com/artifact/net.sf.ezmorph/ezmorph --><dependency>    <groupId>net.sf.ezmorph</groupId>    <artifactId>ezmorph</artifactId>    <version>1.0.6</version></dependency><!-- https://mvnrepository.com/artifact/xom/xom --><dependency>    <groupId>xom</groupId>    <artifactId>xom</artifactId>    <version>1.2.5</version></dependency>  </dependencies>  <build>    <finalName>tools</finalName>  </build></project>