SONAR 问题 - 关闭此 FileInputStream
如何解决此 SONAR 问题?关闭这个 FileInputStream.
How do I fix this SONAR issue? Close this FileInputStream.
提前致谢！
File billFile = new File(filePath);
try (BufferedReader br = new BufferedReader(new InputStreamReader(
new FileInputStream(billFile), DEFAULTCHARSET));) {
...
br.close();
} catch (FileNotFoundException e) {
LOG.error(e.getMessage());
} catch (IOException e) {
LOG.error(e.getMessage(), e);
}
推荐答案
当你使用 try-with-resources 语句，您不再需要显式关闭 BufferedReader ，因此只需删除 br.close(); 来自您当前的代码，这应该足以解决您的声纳问题，因为 BufferedReader 将在关闭时关闭底层 InputStreamReader 并且 InputStreamReader 将在关闭时关闭您的 FileInputStream.
As you use the try-with-resources statement, you don't need to close your BufferedReader explicitly anymore so simply remove br.close(); from your current code which should be enough to fix your sonar issue as a BufferedReader will close the underlying InputStreamReader on close and the InputStreamReader will close your FileInputStream on close.
如果还不够，您可以简单地重写您的代码，将您的 FileInputStream 显式声明为您的 try-with-resources 语句的资源，如下所示:
If not enough, you could simply rewrite your code to explicitly declare your FileInputStream as a resource of your try-with-resources statement like below:
try (FileInputStream fis = new FileInputStream(billFile);
Reader reader = new InputStreamReader(fis, DEFAULTCHARSET);
BufferedReader br = new BufferedReader(reader) {
...
<小时>
如果仍然无法正常工作，请确保为 Java 7 及更高版本正确配置了声纳，否则它不会意识到可能导致此违规的 try-with-resources 语句提高.
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