JAVA 中String 转JSONObject并取值

今日在做Springboot时把请求放在后端进行，请求返回的结果的字符串需转化为JSON格式才能在后端进行交互，转换时遇到没有的问题，

 找寻后发现应该导入相关依赖包才能使用JSONObject

import net.sf.json.JSONObject;

net.sf.json.JSONObject依赖

<!-- JSONObject对象依赖的jar包 -->  
        <dependency>  
            <groupId>commons-beanutils</groupId>  
            <artifactId>commons-beanutils</artifactId>  
            <version>1.9.3</version>  
        </dependency>  
        <dependency>  
            <groupId>commons-collections</groupId>  
            <artifactId>commons-collections</artifactId>  
            <version>3.2.1</version>  
        </dependency>  
        <dependency>  
            <groupId>commons-lang</groupId>  
            <artifactId>commons-lang</artifactId>  
            <version>2.6</version>  
        </dependency>  
        <dependency>  
            <groupId>commons-logging</groupId>  
            <artifactId>commons-logging</artifactId>  
            <version>1.1.1</version>  
        </dependency>  
        <dependency>  
            <groupId>net.sf.ezmorph</groupId>  
            <artifactId>ezmorph</artifactId>  
            <version>1.0.6</version>  
        </dependency>  
        <dependency>  
            <groupId>net.sf.json-lib</groupId>  
            <artifactId>json-lib</artifactId>  
            <version>2.2.3</version>  
            <classifier>jdk15</classifier><!-- 指定jdk版本 -->  
        </dependency>  
        <!-- Json依赖架包下载 -->  

导入后就能将字符串转换为JSONObject格式

Object objJson = JSONObject.fromObject(substring);

使用getString方法就能取出 objJson里面的值

System.out.println( ((JSONObject) objJson).getString("id"));