我正在尝试在我的Struts2 Web应用程序(使用
JQuery插件)中使用Ajax验证,我有一个问题.
我在使用@Validations注释时遇到了问题所以我只是覆盖了validate()方法,并且在验证过程中所有的xhtml表单都可以正常工作.字段错误很好地收到并打印在gui中.
事实是,在验证表单时,会向服务器发送第二个POST以启动Action.但是,我不知道为什么,框架没有设置模型的属性,并且在执行Action之后生成HTML响应时,框架无法访问属性(仅当我使用jsonValidationWorkflowStack时).
我创建了一个简单的例子：
那个行动
@Namespace("/actions")
@ParentPackage("actions")
@InterceptorRef(value = "jsonValidationWorkflowStack")
public class ActionTest extends ActionSupport implements
ModelDriven<ModelTest>,ParameterAware {
private static final long serialVersionUID = 1L;
private ModelTest model;
private Map<String,String[]> parameters;
public ActionTest() {
model = new ModelTest();
}
@Action(value = "actionTest",results = {
@Result(name = SUCCESS,location = "/jsp/win.jsp"),@Result(name = ERROR,location = "/jsp/loose.jsp"),})
public String executeAction1() throws Exception {
System.out.println("pass: "+getModel().getPass()); //the field is always null
if ("test".equals(getModel().getPass()))
return SUCCESS;
return ERROR;
}
@Override
public ModelTest getModel() {
return model;
}
@Override
public void validate() {
String field;
if (parameters.get("pass") != null) {
field = parameters.get("pass")[0];
if (field == null || field.isEmpty())
addFieldError("pass","the field is not set");
else if (!"test".equals(field))
addFieldError("pass","the password is \"test\"");
}
}
@Override
public void setParameters(Map<String,String[]> arg0) {
this.parameters = arg0;
}
}
该模型
public class ModelTest {
private String pass;
public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
}
表格
<s:form action="actionTest" theme="xhtml"> <s:textfield name="pass"/> <sj:submit validate="true"/> </s:form>
在这个例子中：
– 即使密码是“test”,我总是被重定向到loose.jsp
– 如果我想在这个动作重定向的另一个jsp中打印一个,我什么都没看到(即使我在模型中设置了一个默认值).
你能帮我一把吗？
PS：对不起我的英语不好：/
解决方法
实际上模型驱动的拦截器带有defaultStack
<interceptor-stack name="defaultStack">
<interceptor-ref name="exception"/>
<interceptor-ref name="alias"/>
<interceptor-ref name="servletConfig"/>
<interceptor-ref name="prepare"/>
<interceptor-ref name="i18n"/>
<interceptor-ref name="chain"/>
<interceptor-ref name="debugging"/>
<interceptor-ref name="profiling"/>
<interceptor-ref name="scopedModelDriven"/>
<interceptor-ref name="modelDriven"/>
<interceptor-ref name="fileUpload"/>
<interceptor-ref name="checkBox"/>
<interceptor-ref name="staticParams"/>
<interceptor-ref name="params">
<param name="excludeParams">dojo\..*</param>
</interceptor-ref>
<interceptor-ref name="conversionError"/>
<interceptor-ref name="validation">
<param name="excludeMethods">input,back,cancel,browse</param>
</interceptor-ref>
<interceptor-ref name="workflow">
<param name="excludeMethods">input,browse</param>
</interceptor-ref>
</interceptor-stack>
并且jsonValidationWorkflowStack不包含只包含basicStack
<interceptor-stack name="jsonValidationWorkflowStack">
<interceptor-ref name="basicStack"/>
<interceptor-ref name="validation">
<param name="excludeMethods">input,cancel</param>
</interceptor-ref>
<interceptor-ref name="jsonValidation"/>
<interceptor-ref name="workflow"/>
</interceptor-stack>
这是basicStack
<interceptor-stack name="basicStack">
<interceptor-ref name="exception"/>
<interceptor-ref name="servletConfig"/>
<interceptor-ref name="prepare"/>
<interceptor-ref name="checkBox"/>
<interceptor-ref name="multiselect"/>
<interceptor-ref name="actionMappingParams"/>
<interceptor-ref name="params">
<param name="excludeParams">dojo\..*,^struts\..*</param>
</interceptor-ref>
<interceptor-ref name="conversionError"/>
</interceptor-stack>
尝试添加
@Namespace("/actions")
@ParentPackage("actions")
@InterceptorRefs({
@InterceptorRef("jsonValidationWorkflowStack"),@InterceptorRef("defaultStack")
})
