最近看到了webwork输入校验,相关代码如下：
LoginAction.java代码
- import com.opensymphony.xwork.ActionSupport;
- ......
- public class LoginAction extends ActionSupport implements Action, ModelDriven {
- private final static String LOGIN_FAIL="loginfail";
- LoginInfo loginInfo = new LoginInfo();
-
- public String execute() throws Exception {
- if ("erica".equalsIgnoreCase(loginInfo.getUsername()) && "mypass".equals(loginInfo.getPassword())) {
- return SUCCESS;
- } else {
- System.out.println("=======================================================");
- return LOGIN_FAIL;
- }
- }
- public Object getModel() {
- return loginInfo;
- }
- }
LoginAction-validation.xml和LoginAction.java在同一个目录下
LoginAction-validation.xml代码
- ＜!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWorkValidator 1.0.2//EN"
- "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd"＞
- ＜validators＞
- ＜field name="model.username"＞
- ＜field-validator type="requiredstring"＞
- ＜message＞Please enter Username!＜/message＞
- ＜/field-validator＞
- ＜/field＞
-
- ＜field name="model.password"＞
- ＜field-validator type="stringlength"＞
- ＜param name="minLength"＞4＜/param＞
- ＜param name="maxLength"＞6＜/param＞
- ＜message＞Password length must between ${minLength} and ${maxLength} chars!＜/message＞
- ＜/field-validator＞
- ＜/field＞
- ＜/validators＞
xwork.xml代码
- ＜!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN"
- "http://www.opensymphony.com/xwork/xwork-1.0.dtd"＞
- ＜xwork＞
- ＜include file="webwork-default.xml" /＞
- ＜package name="default" extends="webwork-default"＞
-
- ＜interceptors＞
- ＜interceptor-stack name="modelParamsStack"＞
- ＜interceptor-ref name="params" /＞
- ＜interceptor-ref name="model-driven" /＞
- ＜/interceptor-stack＞
- ＜/interceptors＞
-
- ＜action name="login" class="net.xiaxin.webwork.action.LoginAction"＞
- ＜result name="success" type="dispatcher"＞
- ＜param name="location"＞/main.jsp＜/param＞
- ＜/result＞
- ＜result name="loginfail" type="dispatcher"＞
- ＜param name="location"＞/validatorindex.jsp＜/param＞
- ＜/result＞
- ＜interceptor-ref name="modelParamsStack"/＞
- ＜interceptor-ref name="validationWorkflowStack" /＞
- ＜/action＞
- ＜/package＞
- ＜/xwork＞
validators.xml和xwork.xml都放在classes根目录下
validators.xml代码
- ＜validators＞
- ＜validator name="requiredstring" class="com.opensymphony.xwork.validator.validators.RequiredStringValidator"/＞
-
- ＜validator name="stringlength" class="com.opensymphony.xwork.validator.validators.StringLengthFieldValidator"/＞
-
- ＜/validators＞
validatorindex.jsp代码
- ＜%@ taglib prefix="ww" uri="/webwork"%＞
- ＜style type="text/css"＞
- .errorMessage {
- color: red;
- }
- ＜/style＞
- ＜form action="login.action"＞
- 登录＜br＞
- ＜ww:if test="hasFieldErrors()"＞
- ＜span class="errorMessage"＞
- ＜b＞Errors:＜/b＞＜br＞
- ＜ww:iterator value="fieldErrors"＞
- ＜li＞＜ww:property value="value[0]"/＞＜/li＞
- ＜/ww:iterator＞
- ＜/span＞
- ＜/ww:if＞
- 用户名:
- 左尖括号 input type="text" name="model.username" /＞
-
- 密 码 :
- 左尖括号 input type="password" name="model.password" /＞
-
- 左尖括号 input type="submit" value="提交" name="B1"/＞
- 左尖括号 input type="reset" value="重置" name="B2"/＞
- ＜／form＞
运行时，若输入正确的用户名和密码，按提交按钮后可以转向正确的页面。若输入错误的用户名或密码，按提交按钮则页面空白一片。在myeclipse下看到如下信息：
DefaultWorkflowInterceptor - Invoking validate() on action net.xiaxin.webwork.action.LoginAction@a47cc3
PrefixMethodInvocationUtil - cannot find method [validateExecute] in action [net.xiaxin.webwork.action.LoginAction@a47cc3]
PrefixMethodInvocationUtil - cannot find method [validateDoExecute] in action [net.xiaxin.webwork.action.LoginAction@a47cc3]
DefaultWorkflowInterceptor - Errors on action net.xiaxin.webwork.action.LoginAction@a47cc3, returning result name 'input'
DefaultActionInvocation - No result defined for action net.xiaxin.webwork.action.LoginAction and result input
这是什么原因呢？
