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README
Apache-2.0

kJson

最新版本:v1.0.0

介绍

kJson是kuangtant基于原生org.json.*进一步封装而成的JSON解析库,使用者可以使用更少的代码解析Json,以达到降低开发成成本的解决方案。https://gitee.com/kuangtant/kJson

软件架构

软件架构说明

a. master正式版分支

b. develop开发板分支

c. src目录 kJson源码目录

d. com/kuangtant/v/kJson/目录下有jar文件,可直接引用

安装教程

  1. 下载库后,按需要引入com.kuangtant.v.kJson.*
import com.kuangtant.v.kJson.*
  1. 接下来就可以按说明解析json了

使用说明

kJson提供JSON.json()解析json和JSON.array()解析数组。

A. 解析json

String jsonStr='{"a":"valA",\n"b":{"b1":"valB1"},\n"c":123,\n"d":123456789,\n"e":"{"newE":"newValE"}",\n"f":[1,2,3],\n"g":"[4,5,6]"}';

一般来说,对于json字符串都需要转换为对象进行下一步的解析,kJson提供JSON.json()进行解析,得到kJson对象。

kJson kjson=JSON.json(jsonStr);

得到了jsonStr的解析对象kJson,可以继续读取。 kJson提供getString()以读取a对应字符串的值valA

String aStr=kjson.getString("a");
//得到aStr为 valA

kJson还提供其它取值的方法

kJson kjson1=kjson.getJson("b");//得到b对应的kJson对象
int  intC=kjson.getInt("c");
long longD=kjson.getLong("d");

对于获取e字符串对应的json字符串,一般可先用getString()获取它,再用JSON.json()转换为kJson对象,再取值

String strE=kjson.getString("e");   
kJson kJsonE=JSON.json(strE); 
String newEstr=kjsonE.getString("newE");
//或者
String newEstr=JSON.json(kjson.getString("e")).getString("newE");

但kJson直接提供了getStringToJson()方法,直接e转换为对象。

kJson kJsonE=kjson.getStringToJson("e");
String newEstr=kjsonE.getString("newE");
   //或者
String newEstr=kjson.getStringToJson("e").getString("newE");

获取数组用getArray()的到数组的kArray对象。

kArray karray=kjson.getArray("f");

获取g数组字符串,也可以用上述方法取值(数组取值下面讲)。

kArray karrayG=JSON.array(kjson.getString("g"));

或用kJson提供的getStringToArray()

kArray karrayG=kjson.getStringToArray("g");

B. 解析array

String arrayStr='["",{},123,456789,"{}","[]"]'

解析数组也需要将其转换为对象,使用JSON.array()。

kArray karray=JSON.array(arrayStr);

接下来按照需求解析数组。

String val0=karray.getString(0);
kJson val1=karray.getJson(1);
int val2=karray.getInt(2);
long val3=karray.getLong(3);
//解析json字符串
kJson val4=JSON.json(karray.getString(4)); 
//或者
kJson val4=karray.getStringToJson(4);
//同理解析数组
kArray val5=karray.getStringToArray(5);

C. 其它
Json/Array转字符串

String  str=JSON.json(jsonStr).stringify();
String  str=JSON.array(arrayStr).stringify();

Json获得所有KEY,得到所有KEY的数组

kArray key=JSON.json(jsonStr).keys();

Array获得长度Length

Int len=JSON.array(arrayStr).length();

Json/Array 修改/添加key-value用put()

kJson kj=JSON.json();
kj.put("a","val_a").put("b",5);
//得到 {"a":"val_a","b":5}

kArray ka=JSON.array();
ka.put(0,"haha").put(1,JSON.json());
//得到 ["haha",{}]

说明

  1. 本工具的说明文档详见本文
  2. 官方博客详见https://kuangtant.gitee.io
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