Spring Boot Basic Tutorial 9-web application Development-Error handling

A. handling of Errors

Method One: Spring Boot maps all errors to/error by default, implementing Errorcontroller

@Controller

@RequestMapping (value = "Error")

public class Baseerrorcontroller implements Errorcontroller {

private static final Logger Logger = Loggerfactory.getlogger (Baseerrorcontroller.class);

@Override

Public String Geterrorpath () {

logger.info (" wrong! Enter the custom error Controller ");

return "Error/error";

}

@RequestMapping

Public String error () {

return Geterrorpath ();

}

}

Method Two: Add the custom error page

2.1 HTML static page: defined under resources/public/error/

such as add 404 page: resources/public/error/404.html page, Chinese note page encoding

2.2 Template Engine page: defined under templates/error/

If you add 5xx page: TEMPLATES/ERROR/5XX.FTL

Note: templates/error/this priority compared to resources/public/error/high

Method Three: Use annotations @controlleradvice

/**

 *  Unified Exception Handling

*

* @param exception

* exception

* @return

*/

@ExceptionHandler ({runtimeexception.class})

@ResponseStatus (Httpstatus.ok)

Public Modelandview processexception (RuntimeException exception) {

logger.info (" Custom exception Handling-runtimeexception");

Modelandview m = new Modelandview ();

M.addobject ("Roncooexception", Exception.getmessage ());

M.setviewname ("error/500");

return m;

}

/**

 *  Unified Exception Handling

*

* @param exception

* exception

* @return

*/

@ExceptionHandler ({exception.class})

@ResponseStatus (Httpstatus.ok)

Public Modelandview processexception (Exception Exception) {

logger.info (" Custom exception Handling-exception");

Modelandview m = new Modelandview ();

M.addobject ("Roncooexception", Exception.getmessage ());

M.setviewname ("error/500");

return m;

}

Concern:

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Spring Boot Basic Tutorial 9-web application Development-Error handling