在Eclipse中开发基于DWR的AJAX的Web应用Struts5.docx

textproperty="userName"onkeyup="showUserNameInfo（this.value）"/>

none"bordercolorlight="#4DA6FF"bordercolordark="#ECF5FF"bgcolor="#F0F8FF">

selectproperty="allUserNameInfo"onchange="userName.value=options[selectedIndex].value;">

select>

form>

html>

5、在webapp.js中添加showUserNameInfo函数

functionshowUserNameInfo（inputedUserName）

{

if（inputedUserName==""||inputedUserName.length==0）

{

$（"dataTable"）.style.display="none";//将表格行隐藏

return;//当没有输入时不发出请求

}

infoCompleteBean.getUserNameInfo（inputedUserName,showAllUserNameCallBackFun）;

}

functionshowAllUserNameCallBackFun（returnSomeUserNameInfoList）//代表返回值的数组

{

if（returnSomeUserNameInfoList.length==0）//有匹配的数据吗---表示没有匹配的数据

{

$（"dataTable"）.style.display="none";//将表格行隐藏

return;

}

varuserNameString="";

$（"dataTable"）.style.display="";

DWRUtil.removeAllOptions（"allUserNameInfo"）;

DWRUtil.addOptions（'allUserNameInfo',returnSomeUserNameInfoList）;

}

6、添加ActionForm

com.px1987.dwrexampl.actionform.InfoCompleteActionForm、infoCompleteActionForm

privateStringuserName;

privateStringallUserNameInfo;

/*

*GeneratedbyMyEclipseStruts

*Templatepath:

templates/java/JavaClass.vtl

*/

packagecom.px1987.dwrexampl.actionform;

importjavax.servlet.http.HttpServletRequest;

importorg.apache.struts.action.ActionErrors;

importorg.apache.struts.action.ActionForm;

importorg.apache.struts.action.ActionMapping;

/**

*MyEclipseStruts

*Creationdate:

09-28-2007

*

*XDocletdefinition:

*@struts.formname="infoCompleteActionForm"

*/

publicclassInfoCompleteActionFormextendsActionForm{

/*

*Generatedfields

*/

/**userNameproperty*/

privateStringuserName;

privateStringallUserNameInfo;

/*

*GeneratedMethods

*/

/**

*Methodvalidate

*@parammapping

*@paramrequest

*@returnActionErrors

*/

publicActionErrorsvalidate（ActionMappingmapping,

HttpServletRequestrequest）{

//TODOAuto-generatedmethodstub

returnnull;

}

/**

*Methodreset

*@parammapping

*@paramrequest

*/

publicvoidreset（ActionMappingmapping,HttpServletRequestrequest）{

//TODOAuto-generatedmethodstub

}

/**

*ReturnstheuserName.

*@returnString

*/

publicStringgetUserName（）{

returnuserName;

}

/**

*SettheuserName.

*@paramuserNameTheuserNametoset

*/

publicvoidsetUserName（StringuserName）{

this.userName=userName;

}

publicStringgetAllUserNameInfo（）{

returnallUserNameInfo;

}

publicvoidsetAllUserNameInfo（StringallUserNameInfo）{

this.allUserNameInfo=allUserNameInfo;

}

}

7、添加Action

com.px1987.dwrexampl.action.InfoCompleteAction、/infoComplete

编程Action类

packagecom.px1987.dwrexampl.action;

importjavax.servlet.http.HttpServletRequest;

importjavax.servlet.http.HttpServletResponse;

importorg.apache.struts.action.Action;

importorg.apache.struts.action.ActionForm;

importorg.apache.struts.action.ActionForward;

importorg.apache.struts.action.ActionMapping;

importcom.px1987.dwrexampl.actionform.InfoCompleteActionForm;

publicclassInfoCompleteActionextendsAction

{

publicActionForwardexecute（ActionMappingmapping,ActionFormform,

HttpServletRequestrequest,HttpServletResponseresponse）{

InfoCompleteActionForminfoCompleteActionForm=（InfoCompleteActionForm）form;//TODOAuto-generatedmethodstub

returnmapping.findForward（"showInfo"）;

}

}

8、添加返回的页面showInfo.jsp

<%@pagelanguage="java"pageEncoding="gb2312"%>

<%@tagliburi="http:

//struts.apache.org/tags-bean"prefix="bean"%>

<%@tagliburi="http:

//struts.apache.org/tags-html"prefix="html"%>

<%@tagliburi="http:

//struts.apache.org/tags-logic"prefix="logic"%>

<%@tagliburi="http:

//struts.apache.org/tags-tiles"prefix="tiles"%>

DOCTYPEHTMLPUBLIC"-//W3C//DTDHTML4.01Transitional//EN">

htmllang="true">

base/>

--

-->

您所查询的结果如下：

html>

9、添加ForWard

输入showInfo

10、再部署并执行本应用（http:

//localhost:

8080/DWRWebTest/userManager/infoComplete.jsp）

并且在控制台中能够看到下面的执行结果-----多次向后台的业务方法进行请求调用。

选择其中的某个名称项目，将自动实现输入

对于中文，也同样能够自动补全

将实时补全与用户注册关联

1、修改userRegister.jsp页面中的内容

<%@pagelanguage="java"pageEncoding="GB18030"%>

<%@tagliburi="http:

//struts.apache.org/tags-bean"prefix="bean"%>

<%@tagliburi="http:

//struts.apache.org/tags-html"prefix="html"%>

<%@tagliburi="http:

//strut