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Ask two questions Java problem in servlet

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 Invalid IP Address

Post time: 2020-3-17 17:30:01
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Ask two questions
1. The following code, how to end after throwing an error page? That is, the following code, how to goto after the (... 333;) pseudo-statement?
2. In the program, if there is a judgment of if (aaa == null), how to find a simple picture? End the following doIt () function?

code show as below,


// @Override
public void doIt (HttpServletRequest request, HttpServletResponse response)
throws EXXXException, EXXXXFatalException {
Ranch
String urlAllOK = "/plugins/DelDocsPlugin/jsp/End21AllOK.jsp";
String urlError = "/plugins/DelDocsPlugin/jsp/Error.jsp";
Ranch
ServletContext sc = getServletContext ();
if (sc == null) {
String returnSearchResultXXXList = "Failed in deleted!";
sc.setAttribute (KEY_RETURN_TYPE_ERROR_XXX, returnSearchResultXXXList);


try {
sc.getRequestDispatcher (urlError) .forward (request, response);

} catch (Exception e0000) {
e0000.printStackTrace ();
}
}


              ... 111;
              ... 222;
              ... 333;
 
       }
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Post time: 2020-6-22 18:00:01
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With JAVASCRIPT
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Post time: 2020-6-30 00:15:01
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forward

return;
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Post time: 2020-7-6 22:00:01
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Still use goto this year?
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Post time: 2020-8-27 22:15:01
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Keyword to disrupt the process
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Post time: 2020-8-29 18:30:02
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Use JavaScript and RequestDispatcher dispatcher=request.getRequestDispatcher("/admin.AddJob.jsp?id=5");
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