Question

我正在自动化登录应用程序，点击相应页面并注销的情节。

在这里如何估计需要使用try catch的时间和地点？

Answer 1

这取决于具体情况。

1）对于你想要处理错误的情况（例如，＆＃39; FileOutputStream＆＃39;将抛出＆＃39; FileNotFoundException＆＃39;

try{FileOutputStream out = new FileOutputStream(
                    new File(System.getProperty("user.dir") + "\\needful\\output.xlsx"));
            workbook.write(out);
            workbook.close();
            out.close();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }

2）即使某些功能失败，您希望代码在哪里运行。（例如，验证和断言）

Assert.assertEquals(21, 25); //here the code execution stops

//here the code fails yet the script will continue its execution.
try{
 Assert.assertEquals(21, 25);
 }catch(Exception e){
e.printStackTrace();
}

3）如果你想添加＆＃39; finally {}＆＃39;函数使得＆＃34;即使从try或catch块中抛出异常，也始终会执行finally子句中的代码。＆＃34; - Link

public void open_File(){
        FileReader reader = null;
        try {
            reader = new FileReader("file\path\");
            //do something here
        } catch (IOException e) {
            //do something clever with the exception
        } finally {
            if(reader != null){
                try {
                    reader.close();
                } catch (IOException e) {
                    //do something clever with the exception
                }
            }
            System.out.println("--- File Process Ended ---");
        }
    }

如何决定何时在selenium webdriver中使用try catch块

1 个答案: