windows和linux文件路径问题

1、
windows平台：用\或\\
linux平台：用/

2、
Java代码中路径分隔符用：File.separator

3、
windows平台也兼容/，也可以统一替换成/
filePath = filePath.replace("\\", "/");

4、路径错误会报错，No Such file or diretory异常
java.io.FileNotFoundException: /home/tomcat/apache-tomcat-7.0.68_HXConsloe/webapps/HXConsole/JCB\\JCB_MerchantDataFile_20170905100340.txt (No such file or directory)