zip4j压缩使用总结1、示例代码2、测试代码1、net.lingala.zip4j.exception.ZipException: input file is null 需要把ZipParameters对象的isSourceExternalStream属性设置为true，例如：parameters.setSourceExternalStream(true); 2、net.lingala.zip4j.exception.ZipException: file name is empty for external stream 需