一、json文件

{"id": 0,"name": "kwok","pocket" : 33.33,"wealth" : 1.23E9,"isAdult": true,"house": null,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {"id": 1,"name": "admin1","isAdult": false,"house": null,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {"id": 11,"name": "admin11","isAdult": true,"house": null,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {"id": 111,"name": "admin111","isAdult": true,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {},"friends": [{}]},"friends": [{"id": 112,"name": "admin112","isAdult": true,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {},"friends": [{"id": 1121,"name": "admin1121","isAdult": true,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {},"friends": [{}]}]}, {"id": 113,"name": "admin113","isAdult": true,"house": null,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {},"friends": [{}]}]},"friends": [{"id": 2,"name": "admin2","isAdult": true,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {},"friends": [{}]}, {"id": 3,"name": "admin3","isAdult": true,"pages": [1, 2, 3],"house": "yes","pages_en": ["one", "two", "three"],"mate": {},"friends": [{}]}]},"friends": [{"id": 2,"name": "admin2","isAdult": true,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {"id": 22,"name": "admin22","isAdult": true,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {},"friends": [{}]},"friends": [{}]}, {"id": 3,"name": "admin3","isAdult": true,"pages": [1, 2, 3],"pages_en": ["one", "two", "three"],"mate": {},"friends": [{}]}]
}

二、pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.0</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>json</artifactId><version>0.0.1-SNAPSHOT</version><name>json</name><description>json</description><properties><java.version>8</java.version></properties><dependencies><dependency><groupId>pl.jalokim.propertiestojson</groupId><artifactId>java-properties-to-json</artifactId><version>4.0</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.55</version></dependency><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.6</version></dependency><dependency><groupId>org.json</groupId><artifactId>json</artifactId><version>20180813</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

三、工具类

package com.example.json;import org.json.JSONArray;
import org.json.JSONObject;
import pl.jalokim.propertiestojson.util.PropertiesToJsonConverter;import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;/*** JSON TO Properties* Properties TO JSON* JSON TO Map* Map TO JSON* Depend on stleary/JSON-java, mikolajmitura/java-properties-to-json.* @author Kwok*/
public class JSONParserUtils2 {/*** JSON TO Map* @author Kwok**/
public static Map<String,Object> jsonToMap(String jsonStr, String keyPrefix){if(keyPrefix == null){keyPrefix = "";}Map<String,Object> keyValueMap = new TreeMap<String,Object>();/** 当值为字符串数组（如："pages_en":["one","two","three"]），递归解析字符串时，会抛异常（如：JSON.parse("one") ）。* 这里进行异常捕获，按键值对进行储存。* 详情查看 src/main/java/org/kwok/util/json/Test_OrgJson_Parse.java 。*/Object obj ;try{obj = new JSONObject(jsonStr);}catch (Exception e1) {try{obj = new JSONArray(jsonStr);}catch (Exception e2) {obj = jsonStr;}}if(obj instanceof JSONObject){JSONObject jsonObject = new JSONObject(jsonStr);Iterator<String> keys = jsonObject.keys();while (keys.hasNext()) {String key = keys.next();if(jsonObject.get(key) instanceof JSONObject){String tempKeyPrefix = keyPrefix + key + ".";keyValueMap.putAll(jsonToMap(jsonObject.get(key).toString(), tempKeyPrefix));}else if(jsonObject.get(key) instanceof JSONArray){String tempKeyPrefix = keyPrefix + key + ".";keyValueMap.putAll(jsonToMap(jsonObject.get(key).toString(), tempKeyPrefix));}else{/** 处理属性值为 null 的情况，这里转为空字符串。*/if (jsonObject.get(key) == null) {keyValueMap.put(keyPrefix + key, "");} else {keyValueMap.put(keyPrefix + key, jsonObject.get(key));}}}}else if(obj instanceof JSONArray){JSONArray jsonArray = new JSONArray(jsonStr);for (int i = 0; i < jsonArray.length(); i++) {String tempKeyPrefix = keyPrefix == "" ? keyPrefix + "[" + i + "]" + "." : keyPrefix.substring(0, keyPrefix.length() - 1) + "[" + i + "]" + ".";/** 处理数组中元素为 null 的情况，这里转为空字符串。如：{"pages":[1,2,null]}。*/if (jsonArray.get(i) == null) {keyValueMap.putAll(jsonToMap("", tempKeyPrefix));} else {keyValueMap.putAll(jsonToMap(jsonArray.get(i).toString(), tempKeyPrefix));}}}else{/** 当值为数组，递归时进入该分支。如：{"pages":[1,2,3]}。*/keyValueMap.put(keyPrefix == "" ? keyPrefix : keyPrefix.substring(0, keyPrefix.length() - 1), jsonStr);}return keyValueMap;}/*** JSON TO Properties* 注：由于  Properties 继承自 Hashtable，固 key、value 值均不可为 null。* 详情查看 src/main/java/org/kwok/util/json/Test_Properties.java。* @author Kwok**/public static Properties jsonToProperties(String jsonStr){Properties properties = new Properties();properties.putAll(jsonToMap(jsonStr, null));return properties;}/*** Map TO JSON* @author Kwok**/public static String mapToJson(Map<String,Object> map){return new PropertiesToJsonConverter().convertFromValuesAsObjectMap(map);}/*** Properties TO JSON* @author Kwok**/public static String propertiesToJson(Properties properties){return new PropertiesToJsonConverter().convertToJson(properties);}}

四、测试类

package com.example.json.test;import com.example.json.JSONParserUtils2;
import org.apache.commons.io.IOUtils;
import org.junit.Test;import java.io.IOException;
import java.nio.charset.Charset;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;/*** @author Kwok*/
public class JSONParserUtils2Test {@Testpublic void jsonToMapTest() throws IOException{Map<String,Object> map = JSONParserUtils2.jsonToMap(IOUtils.resourceToString("/test2.json",Charset.defaultCharset()), null);Set<Entry<String, Object>> mapSet =  map.entrySet();for (Entry<String, Object> entry : mapSet) {System.out.println(entry.getKey() + " --> " + entry.getValue());}//      System.out.println(JSONParserUtils2.mapToJson(map));}@Testpublic void jsonToPropertiesTest() throws IOException{Properties props = JSONParserUtils2.jsonToProperties(IOUtils.resourceToString("/test1.json",Charset.defaultCharset()));Set<Entry<Object, Object>> propSet =  props.entrySet();for (Entry<Object, Object> entry : propSet) {System.out.println(entry.getKey() + " --> " + entry.getValue());}System.out.println(JSONParserUtils2.propertiesToJson(props));}}

五、原项目地址

链接: https://github.com/KwokRoot/java-json-to-properties.git

六、效果演示

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JSON与properties文件的相互转换

一、json文件

二、pom.xml文件

三、工具类

四、测试类

五、原项目地址

六、效果演示

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