json-lib解析JSON例证

json-lib解析JSON例子
<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/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>org.fool.json</groupId><artifactId>json</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>JSON</name><url>http://maven.apache.org</url><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>net.sf.json-lib</groupId><artifactId>json-lib</artifactId><version>2.4</version><classifier>jdk15</classifier></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.1</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.11</version><scope>test</scope></dependency></dependencies></project>

先来看一个简单的DEMO

JsonlibDemo.java

package org.fool.json.jsonlib;import net.sf.json.JSONArray;import net.sf.json.JSONObject;public class JsonlibDemo{public static void main(String[] args){String jsonContent = "{'hello':'world', 'hero':'heroine'}";JSONObject jsonObject = JSONObject.fromObject(jsonContent);String str1 = jsonObject.getString("hello");String str2 = jsonObject.getString("hero");System.out.println(str1);System.out.println(str2);System.out.println("--------------------");jsonContent = "[{'hello': 333, 'abc': false, 'xyz': {'a': 1, 'b': 'ab'}}, "+ "{'hello': 555, 'abc': true, 'xyz': {'a': 3, 'b': 'ba'}}]";JSONArray jsonArray = JSONArray.fromObject(jsonContent);for (Object object : jsonArray){JSONObject jsonObject2 = JSONObject.fromObject(object);int value1 = jsonObject2.getInt("hello");boolean value2 = jsonObject2.getBoolean("abc");// String value33 = jsonObject2.getString("xyz");JSONObject jsonObject3 = jsonObject2.getJSONObject("xyz");int value3 = jsonObject3.getInt("a");String value4 = jsonObject3.getString("b");System.out.println(value1);System.out.println(value2);System.out.println(value3);System.out.println(value4);}}}

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Person.java

package org.fool.json.jsonlib;import java.util.ArrayList;import java.util.List;import org.apache.commons.lang3.builder.ToStringBuilder;import org.apache.commons.lang3.builder.ToStringStyle;public class Person{private String username;private String password;private int age;private String address;private List<String> list = new ArrayList<>();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;}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 List<String> getList(){return list;}public void setList(List<String> list){this.list = list;}@Overridepublic String toString(){return ToStringBuilder.reflectionToString(this,ToStringStyle.SHORT_PREFIX_STYLE);}}

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JsonlibTest.java

package org.fool.json.jsonlib;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import org.junit.Before;import org.junit.Test;public class JsonlibTest{private JSONObject jsonObject = null;private JSONArray jsonArray = null;private Person person = null;@Beforepublic void setUp() throws Exception{person = new Person();person.setUsername("zhangsan");person.setPassword("123456");person.setAddress("beijing");person.setAge(30);person.getList().add("hello");person.getList().add("world");person.getList().add("Hero");person.getList().add("Heroine");}......}

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...        @Testpublic void testEntity2Json(){jsonObject = JSONObject.fromObject(person);System.out.println(jsonObject);}...

?result

{"address":"beijing","age":30,"list":["hello","world","Hero","Heroine"],"password":"123456","username":"zhangsan"}

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...    @Testpublic void testArray2Json(){Person[] persons = {person, person};// int[] i = { 8, 8, 5, 6, 7 };jsonArray = JSONArray.fromObject(persons);System.out.println(jsonArray);}...

?result

[{"address":"beijing","age":30,"list":["hello","world","Hero","Heroine"],"password":"123456","username":"zhangsan"},{"address":"beijing","age":30,"list":["hello","world","Hero","Heroine"],"password":"123456","username":"zhangsan"}]

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...    @Testpublic void testList2Json(){List<Person> list = new ArrayList<>();list.add(person);list.add(person);jsonArray = JSONArray.fromObject(list);System.out.println(jsonArray);}...

?result

[{"address":"beijing","age":30,"list":["hello","world","Hero","Heroine"],"password":"123456","username":"zhangsan"},{"address":"beijing","age":30,"list":["hello","world","Hero","Heroine"],"password":"123456","username":"zhangsan"}]

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...    @Testpublic void testMap2Json(){Map<String, Person> map = new HashMap<>();map.put("001", person);map.put("002", person);jsonObject = JSONObject.fromObject(map);System.out.println(jsonObject);}...

?result

{"001":{"address":"beijing","age":30,"list":["hello","world","Hero","Heroine"],"password":"123456","username":"zhangsan"},"002":{"address":"beijing","age":30,"list":["hello","world","Hero","Heroine"],"password":"123456","username":"zhangsan"}}

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