JSON conversion Tool Class (based on Google's Gson and Ali's Fastjson)

In the project we often involve the conversion of strings and various objects, so we have specially organized a common conversion method

First, the JSON conversion tool class based on the Com.google.code.gson package

1. Introduction of Gson dependencies in the Pom.xml file

        <Dependency>            <groupId>Com.google.code.gson</groupId>            <Artifactid>Gson</Artifactid>            <version>2.8.3</version>        </Dependency>

2. Writing Tool Classes Gsonutil

 PackageCom.json.util;ImportCom.google.gson.Gson;ImportCom.google.gson.reflect.TypeToken;Importjava.util.List;ImportJava.util.Map;/*** * @Description: JSON conversion Tool class based on Com.google.code.gson package *@authorLGs * @date May 30, 2018 **/ Public classGsonutil {Private StaticGson Gson =NULL; Static {        if(Gson = =NULL) {Gson=NewGson (); }    }    PrivateGsonutil () {}/*** Object turns into JSON * *@paramObject *@returnJSON*/     Public Staticstring Gsonstring (Object object) {string gsonstring=NULL; if(Gson! =NULL) {gsonstring=Gson.tojson (object); }        returngsonstring; }    /*** JSON turns into objects * *@paramgsonstring *@paramCLS *@returnObject*/     Public Static<T> T Gsontobean (String gsonstring, class<t>CLS) {T T=NULL; if(Gson! =NULL) {T=Gson.fromjson (gsonstring, CLS); }        returnT; }    /*** JSON turns into list<t> * *@paramgsonstring *@paramCLS *@returnlist<t>*/     Public Static<T> list<t> gsontolist (String gsonstring, class<t>CLS) {List<T> list =NULL; if(Gson! =NULL) {List= Gson.fromjson (gsonstring,NewTypetoken<list<t>>() {}.gettype ()); }        returnlist; }    /*** JSON is converted into list with map * *@paramgsonstring *@returnlist<map<string, t>>*/     Public Static<T> list<map<string, t>>gsontolistmaps (String gsonstring) {List<map<string, t>> list =NULL; if(Gson! =NULL) {List= Gson.fromjson (gsonstring,NewTypetoken<list<map<string, t>>>() {}.gettype ()); }        returnlist; }    /*** JSON converted to map * *@paramgsonstring *@returnmap<string, t>*/     Public Static<T> map<string, t>gsontomaps (String gsonstring) {Map<string, t> map =NULL; if(Gson! =NULL) {Map= Gson.fromjson (gsonstring,NewTypetoken<map<string, t>>() {}.gettype ()); }        returnmap; }}

Ii. The JSON conversion tool class based on Ali's Fastjson package

1. Introduction of Fastjson dependencies in the Pom.xml file

        <Dependency>            <groupId>Com.alibaba</groupId>            <Artifactid>Fastjson</Artifactid>            <version>1.2.4</version>        </Dependency>

2. Writing Tool Classes Fastjsonutils

 PackageCom.json.util;Importjava.util.List;ImportJava.util.Map;ImportCom.alibaba.fastjson.JSON;Importcom.alibaba.fastjson.TypeReference;/*** * @Description: JSON conversion Tool class based on Fastjson package *@authorLGs * @date May 30, 2018 **/ Public classFastjsonutils {/*** Function Description: Convert JSON data to a specified Java object *@paramjsondata JSON data *@paramClazz The specified Java object *@returnThe specified Java object*/     Public Static<T> T Getjsontobean (String jsondata, class<t>clazz) {        returnJson.parseobject (Jsondata, clazz); }    /*** Function Description: Convert Java object to JSON data *@paramObject Java Object *@returnJSON data*/     Public StaticString Getbeantojson (Object object) {returnjson.tojsonstring (object); }    /*** Function Description: Convert JSON data to the specified list of Java objects *@paramjsondata JSON data *@paramClazz The specified Java object *@returnlist<t>*/     Public Static<T> list<t> getjsontolist (String jsondata, class<t>clazz) {        returnJson.parsearray (Jsondata, clazz); }    /*** Function Description: Convert JSON data into more complex list<map<string, object>> *@paramjsondata JSON data *@returnlist<map<string, object>>*/     Public StaticList<map<string, object>>Getjsontolistmap (String jsondata) {returnJson.parseobject (Jsondata,NewTypereference<list<map<string, object>>>() {        }); }}

JSON conversion Tool Class (based on Google's Gson and Ali's Fastjson)