Struts2.0 实现自定义异常国际化

 1 package  com.xunjie.game.answer.web.utils;
 2
 3 import  java.util.List;
 4
 5 import  com.opensymphony.xwork2.ActionInvocation;
 6 import  com.opensymphony.xwork2.ActionSupport;
 7 import  com.opensymphony.xwork2.interceptor.AbstractInterceptor;
 8 import  com.xunjie.game.answer.common.CommException;
 9
10 public   class  CommExceptionInterceptor  extends  AbstractInterceptor  {
11
12    public String intercept(ActionInvocation invocation) throws Exception {
13        String result = null;
14        try {
15            result = invocation.invoke();
16        } catch (CommException exception) {
17            
18            ActionSupport as = (ActionSupport)invocation.getAction();
19            processBaseException(as, exception);
20            
21            List exceptions = exception.getExceptions();
22            if (exceptions != null && !exceptions.isEmpty()) {
23                for (int i = 0; i < exceptions.size(); i++) {
24                    CommException subEX = (CommException) exceptions.get(i);
25                    processBaseException(as, subEX);
26                }
27            }
28            throw exception;
29        }
30        return result;
31    }
32
33    private void processBaseException(ActionSupport action, CommException commException) {
34        String messageKey = commException.getMessageKey();
35        String[] args = commException.getMessageArgs();
36        
37        if (args != null && args.length > 0) {
38            String s = action.getText(messageKey, args);
39            action.addActionError(s);
40        } else {
41            String s = action.getText(messageKey);
42            action.addActionError(s);
43        }
44    }
45}
46