import org.json.JSONObject;报错

1.引入maven依赖即可解决问题

  <dependencies>
    <dependency>
      <groupId>org.json</groupId>
      <artifactId>json</artifactId>
      <version>20160810</version>
    </dependency>
    <!--加入对commons-io的依赖-->
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.4</version>
    </dependency>
  </dependencies>