Struts2.3,,遍历map中的list集合

一：首先是<s:iterator></s:iterator>遍历map中的list集合，代码如下：

1.首先是后台代码，包括定义map和给map中赋值，代码如下：

package cn.gov.csrc.cms.action;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Resource;

import org.apache.struts2.ServletActionContext;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.ExceptionMapping;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.dispatcher.SessionMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import cn.gov.csrc.base.action.BaseAction;
import cn.gov.csrc.cms.model.UserInfo;
import cn.gov.csrc.cms.service.UserService;
import cn.gov.csrc.cms.util.Globals;
import cn.gov.csrc.cms.util.PageData;
import cn.gov.csrc.cms.util.PageNavUtil;

import com.opensymphony.xwork2.ActionContext;

@Controller
@Scope("prototype")
public class UserAction extends BaseAction<UserInfo>{

    private static Logger logger = LoggerFactory.getLogger(UserAction.class);

    private static final long serialVersionUID = 1L;

    private Integer page;

    private Map<String, Object> dataMap;

    public UserAction(){
        dataMap = new HashMap<String, Object>();
    }

    @Resource
    private UserService userService;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    @Action(value = "UserAction_find", results = { @Result(name = "success", location = "/WEB-INF/admin/user/userList.jsp") })
    public String find() {
        page = page == null ? 1 : page < 1 ? 1:page;
        int pageSize = 10;
        PageData<UserInfo> pageData = this.userService.getUsers(page,pageSize,model.getUserName());
        dataMap.clear();
        dataMap.put("dataList", pageData.getPageData());
        dataMap.put("totalCount", pageData.getTotalCount());
        dataMap.put("totalPage", pageData.getTotalPage());
        dataMap.put("currentPage", page);
        dataMap.put("pageNav", PageNavUtil.getPageNavHtml(page.intValue(), pageSize, pageData.getTotalCount(), 15));
        ActionContext.getContext().getSession().put("dataMap", dataMap);
        return "success";
    }

    public Integer getPage() {
        return page;
    }

    public void setPage(Integer page) {
        this.page = page;
    }


}

2.其次是在前台页面接收map中list的值，这里我用的是jsp接收值，代码如下：

<form action="./UserAction_delete.action" id="mainForm" method="post">
    <table class="table table-striped table-hover">
        <thead>
            <tr>
                <th style=" 8px;">
                    <input type="checkbox" id="checkall" class="group-checkable" />
                </th>
                <th>编号</th>
                <th>登录名</th>
                <th>用户姓名</th>
                <th>电话</th>
                <th>部门</th>
                <th>岗位</th>
                <th>操作</th>
            </tr>
             <c:if test="${totalCount==0}">
                 <tr>
                    <td colspan="8">没有相关数据</td>
                 </tr>
             </c:if>
        </thead>
        <s:iterator value="#session.dataMap.dataList" status="user" >
        <tbody>
            <tr class="odd gradeX">
                <td class="hidden-480"><input type="checkbox" class="checkboxes" name="ids" value="${id }" /></td>
                <td class="hidden-480"><s:property value="#user.index+1" /></td>
                <td class="hidden-480"><s:property value="userName" /></td>
                <td class="hidden-480"><s:property value="realName" /></td>
                <td class="hidden-480"><s:property value="phone" /></td>
                <td class="hidden-480"><s:property value="dept" /></td>
                <td class="hidden-480"><s:property value="post" /></td>
                <td class="hidden-480">
                    <s:url id="url" action="UserAction_toUpdate" namespace="/">
                    <s:param name="id" value="id" />
                    </s:url>
                    <a class="btn mini purple thickbox" title='编辑和用户权限' href="<s:property value="#url"/>">
                        <i class="icon-edit"></i>编辑和用户权限
                    </a>
                </td>
            </tr>
        </tbody>
        </s:iterator>
    </table>
</form>

二：其次是<c:forEach></c:forEach>遍历map中的list集合，代码如下：

1.后台代码和上面的一样；

2.前台代码如下：

<c:forEach items="${dataMap.dataList}" var="dataItem" varStatus="rowStatus" >
<tbody>
    <tr class="odd gradeX">
        <td class="hidden-480"><input type="checkbox" class="checkboxes" name="ids" value="${dataItem.id }" /></td>
        <td class="hidden-480"><s:property value="#dataItem.index+1" /></td>
        <td class="hidden-480">${dataItem.userName}</td>
        <td class="hidden-480"><s:property value="realName" /></td>
        <td class="hidden-480"><s:property value="phone" /></td>
        <td class="hidden-480"><s:property value="dept" /></td>
        <td class="hidden-480"><s:property value="post" /></td>
        <td class="hidden-480">
            <s:url id="url" action="UserAction_toUpdate" namespace="/">
            <s:param name="id" value="id" />
            </s:url>
            <a class="btn mini purple thickbox" title='编辑和用户权限' href="<s:property value="#url"/>">
                <i class="icon-edit"></i>编辑和用户权限
            </a>
        </td>
    </tr>
</tbody>
</c:forEach>