我正在实现一个提交到Struts 2 ActionSupport类的简单ExtJS表单。各种组件的代码如下:
MyAction.java:
//packaging and imports
public class MyAction extends ActionSupport {
private String aField;
private String anotherField;
public String execute() throws Exception {
System.out.println(afield + " " + anotherField); //just checking values, atm
return ActionSupport.SUCCESS;
}
public String getAField() {
return this.aField;
}
public void setAField(String aField) {
this.aField = aField;
}
public String getAnotherField() {
return this.anotherField;
}
public void setAnotherField(String anotherField) {
this.anotherField = anotherField;
}
}
myForm.js:
Ext.onReady(function() {
Ext.QuickTips.init();
// turn on validation errors beside the field globally
Ext.form.Field.prototype.msgTarget = 'side';
var myForm = new Ext.form.FormPanel({
id: 'myFormId',
url: 'submitMyForm.action',
defaults: {
xtype: 'textfield'
},
items: [
{
fieldLabel: 'A Field',
id: 'aField',
name: 'aField',
allowBlank: false
},
{
fieldLabel: 'Another Field',
id: 'anotherField',
name: 'anotherField',
allowBlank: false
}
],
renderTo: 'contentMain'
});
var submitButton = new Ext.Button({
text: 'SUBMIT',
handler: function(button, event) {
myForm.getForm().submit({
url: 'submitMyForm.action',
failure: function() {
Ext.Msg.alert('Error', 'Can not save data.');
}
});
}
});
});
struts.xml中:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="myPackage" namespace="/" extends="json-default">
<action name="submitMyForm" class="mycodepackage.MyAction">
<result name="*" type="json">
<param name="includeProperties">aField</param>
</result>
</action>
</package>
</struts>
按下提交按钮后,我的操作正确执行,除了打印出标准调试数据外:
null null
JSON结果正确发回,但当然也是null:
14:22:17,046DEBUG JSONResult:68 - Adding include property expression: aField
14:22:17,052DEBUG JSONWriter:68 - Ignoring property because of include rule: anotherField
14:22:17,053DEBUG JSONUtil:68 - [JSON]{"aField":null}
现在,我的理解是,表单中输入的值应该插入到我的动作类的实例变量中。我错了吗?如果没有,可能会出现什么问题?如果是这样,我该怎么做才能确保将表单数据发送到我的操作处理程序?
感谢。
答案 0 :(得分:0)
发送的任何参数都将放入类似命名的setter中。为什么不首先检查使用LiveHttpHeaders Firefox插件正确发送表单参数。
答案 1 :(得分:0)
一旦我们意识到表单数据没有正确传递到http请求,我的同事开发了一个表单数据拦截器,我们用它来手动加载数据。有关详情,请查看<interceptor>
,<interceptor-stack>
和<interceptor-ref>
代码。