java - 最后阻止在 Oracle 的 JAVA 存储过程中不起作用

Question

当我编译下面的代码时，它显示错误“找不到符号变量” 但是如果我在 finally block 中注释代码，我就可以编译成功。

请指教。

public static int writeFile (String p_file_path, String p_data) throws Exception 
{
  try {
    FileWriter outFile = new FileWriter(p_file_path,true);
    PrintWriter out = new PrintWriter(outFile);
    out.println(p_data);
  } catch (Exception  e) {
  } finally {
    out.close();
  }
  return SUCCESS;
}

Answer 1

如果你想在 finally block 中引用它，你需要在 try block 之外定义它，比如

PrintWriter out = null;
try
{
    FileWriter outFile = new FileWriter(p_file_path,true);
    out = new PrintWriter(outFile);
    out.println(p_data);
}
finally
{
    if (out != null)
        out.close();
}