JSON file editing

Import Java.io.File;

Import java.io.IOException;

Import Java.util.HashMap;

Import Java.util.Map;

Import Org.apache.commons.io.FileUtils;

Import Org.apache.commons.lang.StringUtils;

Import Com.alibaba.fastjson.JSON;

Import Com.alibaba.fastjson.JSONArray;

Import Com.alibaba.fastjson.JSONObject;

Import Com.google.gson.Gson;

Import Com.google.gson.GsonBuilder;

Import com.google.gson.JsonElement;

Import Com.google.gson.JsonParser;

public class Jsondatautils {

public static void edit (String f_json,string field,string fvalue,map<string,object> editdata)

{

String jsonlist = "";

try {

Jsonlist = org.apache.commons.io.FileUtils.readFileToString (new File (F_json));

Jsonobject data = Json.parseobject (jsonlist);

Jsonarray ja = Data.getjsonarray ("Rows");

int len = Ja.size ();

for (int i = 0;i<len;i++)

{

Jsonobject Jo = Ja.getjsonobject (i);

if (jo.getstring (field). Equals (Fvalue))

{

For (String Key:editData.keySet ())

{

Jo.put (Key, Editdata.get (key));

}

Ja.set (i, Jo);

}

}

Data.put ("Rows", JA);

Fileutils.writestringtofile (New File (F_json), Jsonformatter (Data.tojsonstring ()));

} catch (IOException e) {

E.printstacktrace ();

}

}

public static void Add (String f_json,map<string,object> addData)

{

String jsonlist = "";

try {

Jsonlist = org.apache.commons.io.FileUtils.readFileToString (new File (F_json));

Jsonobject data = Json.parseobject (jsonlist);

Jsonarray ja = Data.getjsonarray ("Rows");

Ja.add (AddData);

Data.put ("Rows", JA);

Data.put ("Total", Data.getinteger ("Total") +1);

Fileutils.writestringtofile (New File (F_json), Jsonformatter (Data.tojsonstring ()));

} catch (IOException e) {

E.printstacktrace ();

}

}

public static void Del (String f_json,string field,string fvalue)

{

String jsonlist = "";

try {

Jsonlist = org.apache.commons.io.FileUtils.readFileToString (new File (F_json));

Jsonobject data = Json.parseobject (jsonlist);

Jsonarray ja = Data.getjsonarray ("Rows");

int len = Ja.size ();

for (int i = 0;i<len;i++)

{

Jsonobject Jo = Ja.getjsonobject (i);

if (jo.getstring (field). Equals (Fvalue))

{

Ja.remove (Jo);

}

}

System.out.println (Ja.tojsonstring ());

Data.put ("Rows", JA);

Data.put ("Total", Data.getinteger ("Total")-1);

System.out.println (Data.tojsonstring ());

Fileutils.writestringtofile (New File (F_json), Jsonformatter (Data.tojsonstring ()));

} catch (IOException e) {

E.printstacktrace ();

}

}

public static void Batdel (String f_json,string field,string fvalues)

{

String jsonlist = "";

try {

Jsonlist = org.apache.commons.io.FileUtils.readFileToString (new File (F_json));

Jsonobject data = Json.parseobject (jsonlist);

Jsonarray ja = Data.getjsonarray ("Rows");

int len = Ja.size ();

string[] FV = Fvalues.split (",");

System.out.println (fvalues);

for (int i = 0;i<len;i++)

{

Jsonobject Jo = Ja.getjsonobject (i);

for (String FVALUE:FV)

{

if (Stringutils.isblank (Fvalue)

|| Stringutils.isempty (Fvalue))

{

Continue

}

if (jo.getstring (field). Equals (Fvalue))

{

Ja.remove (Jo);

Len-= 1;

System.out.println ("Delete a piece");

}

}

}

System.out.println (Ja.tojsonstring ());

Data.put ("Rows", JA);

Data.put ("Total", Data.getinteger ("Total")-fv.length);

System.out.println (Data.tojsonstring ());

Fileutils.writestringtofile (New File (F_json), Jsonformatter (Data.tojsonstring ()));

} catch (IOException e) {

E.printstacktrace ();

}

}

/**

*

* @comments formatted to Visual mode

* @time 2015-11-4 11:25:19

* @param uglyjsonstring

* @return

* @returnType String

* @modification

*/

public static string Jsonformatter (String uglyjsonstring) {

Gson Gson = new Gsonbuilder (). setprettyprinting (). Create ();

Jsonparser JP = new Jsonparser ();

Jsonelement JE = jp.parse (uglyjsonstring);

String prettyjsonstring = Gson.tojson (JE);

return prettyjsonstring;

}

public static void Main (string[] args) {

String F_json = "D:\\workspaces\\demo\\webroot\\data\\bgs\\txl.json";

map<string,object> editdata = new hashmap<string, object> ();

Editdata.put ("Txlstatu", "Consent to modify");

Jsondatautils.edit (F_json, "id", "txl-00001", editdata);

Editdata.put ("id", "txl-00011");

Jsondatautils.add (F_json, editdata);

Editdata.put ("id", "txl-00012");

Jsondatautils.add (F_json, editdata);

Jsondatautils.del (F_json, "id", "txl-00012");

Jsondatautils.batdel (F_json, "id", "txl-00011,txl-00012");

}

}

JSON file editing