Struts2的jQuery的标签选择不加载数据加载、标签、数据、jQuery
我试图用标签来渲染struts2的JSP我的列表中。
在同一地点我已经使用了一个标签以及
数据得到填充，而没有数据填充到标签的标签。
Struts2的-jquer-插件版本：3.7.0 jQuery用户界面：1.8.2 Struts2的JSON的-插件版本：2.3.16.3
这也可用于：
＆LT; SJ：头jQueryUI的=真/＆GT;
一个正常使用的Struts2的选择标签，给我造成
＆LT; S：选择列表=languageList＆GT;＆LT; / S：选择＆GT;
但在同一个JSP只是一个又一个的div给什么，即使是同一个对象（表）的这里命名为的 languageList 时，如图中片段
＆LT; S：URL的id =remoteurl行动=SAMPLE2/＆GT;
＆LT; SJ：选择
HREF =％{remoteurl}
ID =回音
NAME =回声
列表=languageList
emptyOption =真
= - 1
headerValue =请选择语言
/＆GT;
已经编辑了问题按建议。
我的意思是说，动作类返回对象 languageList 但在JSP中的用户界面不能够呈现之一，
请从O / P屏幕中查看快照更好地理解。
请帮我弄清楚什么是错在这里？ 我试图复制在支柱的jQuery选择教程如图所示链接 http://struts.jgeppert.com/struts2-jquery-showcase/index.action
来源:: JSP
＆LT;％@页面语言=Java的的contentType =text / html的;字符集= ISO-8859-1
的pageEncoding =ISO-8859-1％＆GT;
！＆LT; DOCTYPE HTML PUBLIC - // W3C // DTD HTML 4.01过渡// ENhttp://www.w3.org/TR/html4/loose.dtd">
＆LT;％@标签库的uri =/ Struts的标签preFIX =S％＆GT;
＆LT;％@ taglib伪preFIX =SJ的uri =/ Struts的jQuery的-标签％＆GT;
＆LT;％@ taglib伪preFIX =SBURI =/ Struts的引导-标签％＆GT;
＆LT; HTML＆GT;
＆LT; HEAD＆GT;
＆LT; META HTTP-当量=Content-Type的CONTENT =text / html的;字符集= ISO-8859-1＆GT;
＆LT;冠军＆GT;双Combo＆LT; /标题＆GT;
＆LT; SJ：头jQueryUI的=真/＆GT;
＆LT; SB：头includeScripts =真includeScriptsValidation =真/＆GT;
＆LT; META HTTP-当量=X-UA-Compatible的
内容=IE = EmulateIE7; IE = EmulateIE9＆GT;
＆LT; META HTTP-当量=Content-Type的CONTENT =text / html的;字符集= UTF-8/＆GT;
＆LT; META NAME =视口
内容=WIDTH =装置宽度，初始规模为1，最大规模= 1.0，用户可扩展性=无/＆GT;
＆LT; - ！开始的jquery - ＆GT;
＆所述;脚本的src =＆其中;％= request.getContextPath（）％＆GT; /jq/jquery-1.8.2.min.js
类型=文/ JavaScript的＆GT;＆LT; / SCRIPT＆GT;
＆所述;脚本的src =＆其中;％= request.getContextPath（）％＆GT; /jq/functions.js
类型=文/ JavaScript的＆GT;＆LT; / SCRIPT＆GT;
＆LT; /头＆GT;
＆LT;身体GT;
＆LT; DIV ID =简单＆GT;
＆LT; S：选择列表=languageList＆GT;＆LT; / S：选择＆GT;
＆LT; / DIV＆GT;
＆LT; S：表单ID =formSelectOne行动=回声的主题=简单
的CssClass =yform＆GT;
＆LT;字段集＆GT;
＆LT;传奇＆GT; AJAX表格填充一个字符串列表＆LT; /传说＆GT;
＆LT; DIV CLASS =式文本＆GT;
＆LT;标签=回声＆GT;回声：LT; /标签＆gt;
＆LT; S：URL的id =remoteurl行动=SAMPLE2/＆GT;
＆LT; SJ：选择HREF =％{remoteurl}ID =回声NAME =回声
列表=languageListemptyOption =真headerKey = - 1
headerValue =请选择语言/＆GT;
＆LT; / DIV＆GT;
＆LT; DIV CLASS =式按钮＆GT;
＆LT; SJ：提交目标=RESULT1值=AJAX的一个指标=指示
按钮=真/＆GT;
＆LT; IMG ID =指标SRC =图像/ indicator.gifALT =载入中...
风格=显示：无/＆GT;
＆LT; / DIV＆GT;
＆LT; /字段集＆GT;
＆LT; / S：形式GT;
＆LT; /身体GT;
＆LT; / HTML＆GT;
Action类：
包com.action;
进口的java.util.ArrayList;
进口的java.util.HashMap;
进口的java.util.List;
进口的java.util.Map;
进口org.apache.struts2.convention.annotation *。
进口com.opensymphony.xwork2.ActionSupport;
@ParentPackage（值=橱窗）
公共类样品扩展了ActionSupport {
私有静态最后长的serialVersionUID = -2223948287805083119L;
私人列表＆LT;字符串＆GT; languageList;
私人列表＆LT; ListValue＆GT; languageObjList;
私人地图＆LT;字符串，字符串＆GT; languageMap;
@Actions（{
@行动（
值=/ SAMPLE2
结果= {
@Result（NAME =成功，键入=JSON）
}）
}）
公共字符串的execute（）{
languageList =新的ArrayList＆LT;字符串＆GT;（）;
languageObjList =新的ArrayList＆LT; ListValue＆GT;（）;
languageMap =新的HashMap＆LT;字符串，字符串＆GT;（）;
languageList.add（Java的）;
languageList.add（PHP）;
languageList.add（C ++）;
languageMap.put（J，Java的）;
languageMap.put（P，PHP）;
languageMap.put（C，C ++）;
languageObjList.add（新ListValue（J，Java的））;
languageObjList.add（新ListValue（P，PHP））;
languageObjList.add（新ListValue（C，C ++））;
返回成功;
}
公共字符串的getJSON（）{
返回的execute（）;
}
公开名单＆LT;字符串＆GT; getLanguageList（）
{
返回languageList;
}
公共地图＆LT;字符串，字符串＆GT; getLanguageMap（）
{
返回languageMap;
}
公开名单＆LT; ListValue＆GT; getLanguageObjList（）
{
返回languageObjList;
}
公共类ListValue {
私人字符串的myKey;
私人字符串myvalue的;
公共ListValue（字符串的myKey，字符串myvalue的）{
超（）;
this.myKey =的myKey;
this.myValue = myvalue的;
}
公共字符串getMyKey（）
{
返回的myKey;
}
公共无效setMyKey（字符串的myKey）
{
this.myKey =的myKey;
}
公共字符串getMyValue（）
{
返回myvalue的;
}
公共无效setMyValue（字符串myvalue的）
{
this.myValue = myvalue的;
}
}
}
行动样品2返回该JSON：
{"JSON":"success","languageList":["Java","PHP","C++"],"languageMap":{"P":"PHP","C":"C++","J":"Java"},"languageObjList":[{"myKey":"J","myValue":"Java"},{"myKey":"P","myValue":"PHP"},{"myKey":"C","myValue":"C++"}]}解决方案
解决了。
希望这会有所帮助别人，
我所要做的就是修改的web.xml 如下：
＆LT;过滤器映射＆GT;
＆LT;过滤器名称＆gt;＆Struts2的LT; /过滤器名称＆gt;
＆LT; URL模式＆GT; / *＆LT; / URL模式＆GT;
＆LT; /过滤器映射＆GT;
＆LT;会话配置＆GT;
此前我已经设置了过滤器
＆LT;过滤器映射＆GT;
＆LT;过滤器名称＆gt;＆Struts2的LT; /过滤器名称＆gt;
＆LT; URL模式＆GT; *动作＆LT; / URL模式＆GT;
＆LT; /过滤器映射＆GT;
＆LT;会话配置＆GT;
因此， Struts2的，jQuery的标签的找不到相应的的.js 的文件
解决方法：改变从＆LT; URL模式＆GT; *动作＆LT; / URL模式＆GT; 到＆LT; URL模式＆GT; / * ＆LT; / URL模式＆GT;
因此，请务必检查的web.xml 这样的异常，往往忽略了去在我的情况。
I am trying to use tag to render my list in struts2 jsp.
At the same location I have used a tag as well
Data is getting populated in the tag whereas no data is being populated in the tag.
struts2-jquer-plugin ver: 3.7.0 jquery UI: 1.8.2 struts2-json-plugin ver:2.3.16.3
this is also used:
<sj:head jqueryui="true" />
A normal use of struts2 select tag,gives me result
<s:select list="languageList"></s:select>
but in the same jsp but just a another div gives nothing even when the same object (List) here named, languageList is used, as shown in the snippets
<s:url id="remoteurl" action="sample2"/>
<sj:select
href="%{remoteurl}"
id="echo"
name="echo"
list="languageList"
emptyOption="true"
="-1"
headerValue="Please Select a Language"
/>
Have edited the Question as per the suggestion.
I mean to say that the action class is returning the object languageList but the UI in jsp is not being able to render one,
please check snapshot from the O/P screen for understanding better.
Please help me figure out what is wrong here? I was trying to replicate the tutorial on struts jquery select as shown in the link http://struts.jgeppert.com/struts2-jquery-showcase/index.action
Source:: JSP
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib uri="/struts-tags" prefix="s"%>
<%@ taglib prefix="sj" uri="/struts-jquery-tags"%>
<%@ taglib prefix="sb" uri="/struts-bootstrap-tags"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Double Combo</title>
<sj:head jqueryui="true" />
<sb:head includeScripts="true" includeScriptsValidation="true" />
<meta http-equiv="X-UA-Compatible"
content="IE=EmulateIE7; IE=EmulateIE9">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=no" />
<!-- begin jquery -->
<script src="<%=request.getContextPath()%>/jq/jquery-1.8.2.min.js"
type="text/javascript"></script>
<script src="<%=request.getContextPath()%>/jq/functions.js"
type="text/javascript"></script>
</head>
<body>
<div id="simple">
<s:select list="languageList"></s:select>
</div>
<s:form id="formSelectOne" action="echo" theme="simple"
cssClass="yform">
<fieldset>
<legend>AJAX Form populated by a String List</legend>
<div class="type-text">
<label for="echo">Echo: </label>
<s:url id="remoteurl" action="sample2" />
<sj:select href="%{remoteurl}" id="echo" name="echo"
list="languageList" emptyOption="true" headerKey="-1"
headerValue="Please Select a Language" />
</div>
<div class="type-button">
<sj:submit targets="result1" value="AJAX One" indicator="indicator"
button="true" />
<img id="indicator" src="images/indicator.gif" alt="Loading..."
style="display: none" />
</div>
</fieldset>
</s:form>
</body>
</html>
Action Class:
package com.action;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.struts2.convention.annotation.*;
import com.opensymphony.xwork2.ActionSupport;
@ParentPackage( value = "showcase")
public class Sample extends ActionSupport{
private static final long serialVersionUID = -2223948287805083119L;
private List<String> languageList;
private List<ListValue> languageObjList;
private Map<String, String> languageMap;
@Actions({
@Action(
value="/sample2",
results={
@Result(name="success",type="json")
})
})
public String execute() {
languageList = new ArrayList<String>();
languageObjList = new ArrayList<ListValue>();
languageMap = new HashMap<String, String>();
languageList.add("Java");
languageList.add("PHP");
languageList.add("C++");
languageMap.put("J", "Java");
languageMap.put("P", "PHP");
languageMap.put("C", "C++");
languageObjList.add(new ListValue("J", "Java"));
languageObjList.add(new ListValue("P", "PHP"));
languageObjList.add(new ListValue("C", "C++"));
return SUCCESS;
}
public String getJSON(){
return execute();
}
public List<String> getLanguageList()
{
return languageList;
}
public Map<String, String> getLanguageMap()
{
return languageMap;
}
public List<ListValue> getLanguageObjList()
{
return languageObjList;
}
public class ListValue {
private String myKey;
private String myValue;
public ListValue(String myKey, String myValue) {
super();
this.myKey = myKey;
this.myValue = myValue;
}
public String getMyKey()
{
return myKey;
}
public void setMyKey(String myKey)
{
this.myKey = myKey;
}
public String getMyValue()
{
return myValue;
}
public void setMyValue(String myValue)
{
this.myValue = myValue;
}
}
}
Action Sample2 returns this json:
{"JSON":"success","languageList":["Java","PHP","C++"],"languageMap":{"P":"PHP","C":"C++","J":"Java"},"languageObjList":[{"myKey":"J","myValue":"Java"},{"myKey":"P","myValue":"PHP"},{"myKey":"C","myValue":"C++"}]}
解决方案
Solved.
May this be of some help to others,
All I had to do was change the web.xml as below:
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<session-config>
Earlier I had set the filter as
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<session-config>
So the struts2-jquery tag could not find the corresponding .js files
Solution: change from <url-pattern>*.action</url-pattern> to <url-pattern>/*</url-pattern>
Thus, please be sure to check the web.xml for such anomalies which often go overlooked as in my case.
