出现的情况，当FragmentTransaction是全局变量时，fragment智能调用一次commint；
异常的意思：commint已经被调用过了。
所以不要重复调用它就好了。
相关文章
- 10-22java.lang.IllegalStateException: getWriter() has already been called for this response
- 10-22用java实现文件下载，提示java.lang.IllegalStateException: getOutputStream() has already been called for this response
- 10-22Caused by: java.lang.IllegalStateException: commit already called
- 10-22java.lang.IllegalStateException: getOutputStream() has already been called for this response
- 10-22严重: Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: getOutputStream() has already been called for this response
- 10-22【spring boot】【elasticsearch】spring boot整合elasticsearch，启动报错Caused by: java.lang.IllegalStateException: availableProcessors is already set to [8], rejecting [8
- 10-22终极解决方案：org.apache.jasper.JasperException: java.lang.IllegalStateException: getOutputStream() has already been called for this response