SpringMVC框架中,处理异常还是挺方便的,提供了一个异常解析器。
处理局部异常
@Controller
public class AccessController {
/**
* 处理这个Controller内部发生的运行时异常
*/
@ExceptionHandler(RuntimeException.class)
public String runtimeExceptionHandler(RuntimeException runtimeException,ModelMap modelMap) {
logger.error(runtimeException.getLocalizedMessage()); modelMap.put("status", IntegralConstant.FAIL_STATUS);
return "exception";
}
}
处理全局异常
import java.util.HashMap;
import java.util.Map; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView; /**
* 全局异常处理器,跳转到错误页面。所有未处理的异常,都会被处理。
*
* @author leiwen@FansUnion.cn
*/
@Component
public class SystemExceptionHandler implements HandlerExceptionResolver { public static final String ERROR_500 = "/views/error/500.jsp"; private Logger logger = Logger.getLogger(getClass()); public ModelAndView resolveException(HttpServletRequest request,
HttpServletResponse response, Object handler, Exception ex) {
logger.error("Catch-exception");
ex.printStackTrace(); //other code
// 根据实际页面来修改
return new ModelAndView(ERROR_500);
} }
另外,需要注意一点,确保上面的那个类SystemExceptionHandler被扫描到。
<!-- 使用annotation 自动注册bean, 并保证@Required、@Autowired的属性被注入 -->
<context:component-scan base-package="cn.fansunion.*" />
参考资料
http://fuliang.iteye.com/blog/947191
http://snowolf.iteye.com/blog/1636050
原文链接:http://FansUnion.cn/articles/3340(小雷网-FansUnion.cn)