struts2中的fieldErrors
- public synchronized void addFieldError(String fieldName, String errorMessage) {
- final Map> errors = internalGetFieldErrors();
- List thisFieldErrors = errors.get(fieldName);
- if (thisFieldErrors == null) {
- thisFieldErrors = new ArrayList();
- errors.put(fieldName, thisFieldErrors);
- }
- thisFieldErrors.add(errorMessage);
- }
上面是struts2的addFieldEror的源码,可以看出错误是put进一个Map>
所以