struts2使用可生成交互的两个列表框的optiontransferselect标签

最新推荐文章于 2019-09-30 11:56:28 发布

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最新推荐文章于 2019-09-30 11:56:28 发布

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分类专栏：框架相关 struts2 文章标签： optiontransferselect

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本文详细阐述了在页面中实现数据导出的功能，并通过整合Struts标签库和Dojo库，展示了如何创建一个用于选择并操作图书信息的交互式表单。包括登录页面的表单设计、数据接收及处理过程，以及后续页面展示处理结果的方式。

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在页面中做数据的导出时候使用。

使用此标签时一定要在页面中加入<s:head/> 原因是此标签和dojo的结合。

<%@ taglib uri="/struts-tags" prefix="s" %>

<head>

<s:head/>

</head>

<s:form action="loginAction" method="post" name="myForm">

<s:optiontransferselect label="选择你喜欢图书"
              name="cnbook" leftTitle="中文图书" list="{'struts2权威指南','轻量级javaeye 企业应用空实战','ajax讲义'}"
              doubleName="enBook" rightTitle="外文图书" doubleList="{'JavaScrip:The definitive Guide','export one-to-one'}" multiple="true"
              addToLeftLabel="向左移动" addToRightLabel="向右移动" addAllToRightLabel="全部右移" addAllToLeftLabel="全部左移"
               allowSelectAll="true" headerKey="cnKey" headerValue="选择图书" emptyOption="true"   doubleHeaderKey="enKey"
               doubleHeaderValue="选择外文图书" doubleMultiple="true" doubleEmptyOption="true" leftDownLabel="向下移动"
       rightDownLabel="向下移动"
       leftUpLabel="向上移动"
       rightUpLabel="向上移动" >
   </s:optiontransferselect>
     <s:submit value="提交"></s:submit>
</s:form>

loginAction.java

public class LoginAction extends ActionSupport {
private static final long serialVersionUID = 8837849417087243469L;
private String userName;
private String email;
private String cnbook;
private String enBook;

@Override
public String execute() throws Exception {

  String usrname = getText("username"); // 获取
  ActionContext context = ActionContext.getContext();
  HttpServletRequest request = (HttpServletRequest) context.get(ServletActionContext.HTTP_REQUEST);

      String [] cnbooks =   request.getParameterValues("cnbook");
      for(int i=0;i<cnbooks.length;i++){
       System.out.println(" 中文图书 "+cnbooks[i] +"/t");
      }
      String [] enBooks =   request.getParameterValues("enBook");
      for(int i=0;i<enBooks.length;i++){
       System.out.println(" 中文图书 "+enBooks[i] +"/t");
      }

      List<Book> lists = new ArrayList<Book>();
      Book book1 = new Book(1,"struts2权威指南",20.2);
      Book book2 = new Book(2,"轻量级javaeye 企业应用空实战",20.2);
      Book book3 = new Book(3,"ajax讲义",20.2);
      lists.add(book1);
      lists.add(book2);
      lists.add(book3);
      request.setAttribute("lists", lists);
  return SUCCESS;
}

Book.java

public class Book {
private int id;
private String name;
private double money;
public Book() {
}
public Book(int id, String name, double money) {
  super();
  this.id = id;
  this.name = name;
  this.money = money;
}

}

success.jsp

<s:optiontransferselect label="选择你喜欢图书"
              name="cnbook" leftTitle="中文图书"  list="#request.lists" listValue="name" listKey="name"
              doubleName="enBook" rightTitle="外文图书" doubleList="{'JavaScrip:The definitive Guide','export one-to-one'}" multiple="true"
              addToLeftLabel="向左移动" addToRightLabel="向右移动" addAllToRightLabel="全部右移" addAllToLeftLabel="全部左移"
               allowSelectAll="true" headerKey="cnKey" headerValue="选择图书" emptyOption="true"   doubleHeaderKey="enKey"
               doubleHeaderValue="选择外文图书" doubleMultiple="true" doubleEmptyOption="true">
   </s:optiontransferselect>

示例图：