Java获得未报告的异常-Java 学习之路

public void createDirectory(String path) {
        try {
            shellSupport.executeCommand("hadoop fs -mkdir "+path);
            logger.info("Directory "+path+" created successfully");
        } catch(Exception exc) {
            throw exc;
        }
    }

Error

错误：未报告的异常异常;必须被 grab 或宣布被抛出

如果我删除try catch然后代码编译并且logger显示消息但是没有创建目录 .

2 回答

如果要抛出异常，则必须在方法签名中声明它 . 在你的情况下，将是

public void createDirectory(String path) throws Exception

或者你可以在不扔的情况下 grab 它

try {
    shellSupport.executeCommand("hadoop fs -mkdir "+path);
    logger.info("Directory "+path+" created successfully");
} catch(Exception exc) {
    exc.printStackTrace();
    // handle your exception
}

回复于 2024-05-04T00:56:13+08:00

仅仅添加是不够的：

public void createDirectory(String path) throws Exception {
    try {
        shellSupport.executeCommand("hadoop fs -mkdir "+path);
        logger.info("Directory "+path+" created successfully");
    } catch(Exception exc) {
        throw exc;
    }
}

那是： public void createDirectory(String path) throws Exception 你的方法？

回复于 2024-05-04T00:56:13+08:00

Java获得未报告的异常

2 回答

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