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主题： [转帖] Struts2和JSP之间，List对象的传递

本主题由 522080330 于 2013-1-23 16:01:44 置为精华

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2013-1-23 14:47:05 | [全部帖] [楼主帖]

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1. 需要传递的POJO对象.

/**
* @author cheney
*
* @date Jan 7, 2013
*/
public class User {
       private String id;
       private String name;
       private String password;
       /**
       * @return the id
       */
       public String getId() {
             return id;
       }
       /**
       * @param id
       * the id to set
       */
       public void setId(String id) {
             this.id = id;
       }
       /**
       * @return the name
       */
       public String getName() {
             return name;
       }
       /**
       * @param name
       * the name to set
       */
       public void setName(String name) {
             this.name = name;
       }
       /**
       * @return the password
       */
       public String getPassword() {
             return password;
       }
       /**
       * @param password
       * the password to set
       */
       public void setPassword(String password) {
             this.password = password;
       }
}

2. Action中的初始化和对jsp页面提交对象的接受

import java.util.LinkedList;
import java.util.List;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Result;
import com.opensymphony.xwork2.conversion.annotations.ConversionRule;
import com.opensymphony.xwork2.conversion.annotations.TypeConversion;
import com.tydic.base.BaseAction;
/**
* @author cheney
*
* @date Aug 15, 2012
*/
public class UserAction extends BaseAction {
       private List<User> mapList;

       /**
       *
       */
       private static final long serialVersionUID = 3551905855359325103L;
@Action(value = "/service/flowcard/user/init", results = { @Result(name = SUCCESS, location = "/jsp/flowcard/u_index.jsp") })
       public String init() throws Exception {
             System.out.println("init.................");
             mapList = new LinkedList<User>();
             User user1 = new User();
             user1.setId("1");
             user1.setName("chen");
             user1.setPassword("aa");
             User user2 = new User();
             user2.setId("2");
             user2.setName("fa");
             user2.setPassword("11");
             User user3 = new User();
             user3.setId("3");
             user3.setName("gaaa");
             user3.setPassword("222");
             User user4 = new User();
             user4.setId("4");
             user4.setName("mms");
             user4.setPassword("w2w");
             mapList.add(user1);
             mapList.add(user2);
             mapList.add(user3);
             mapList.add(user4);
             return SUCCESS;
       }
@Action(value = "/service/flowcard/user/register", results = { @Result(name = SUCCESS, location = "/jsp/flowcard/u_succ.jsp") })
       public String register() throws Exception {
             System.out.println("register.................");
             // System.out.println(mapList.size());
             for (int i = 0; i < mapList.size(); i++) {
                   System.out.println(mapList.get(i).getId());
                   System.out.println(mapList.get(i).getName());
                   System.out.println(mapList.get(i).getPassword());
                   System.out.println("=============================");
             }
             return SUCCESS;
       }
       /**
       * @return the mapList
       */
       public List<User> getMapList() {
             return mapList;
       }
       /**
       * @param mapList
       * the mapList to set
       */
       @TypeConversion(rule = ConversionRule.COLLECTION, converter = "com.tydic.flowcard.action.User")
       public void setMapList(List<User> mapList) {
             this.mapList = mapList;
       }
}

3. JSP页面的封装

?
<body>
<div align="center">
<form id="formId" action="/service/flowcard/user/register.action" method="post">
<c:forEach var="ml" items="{mapList}" varStatus="status">
<input type="hidden" value="{ml.id}" name="mapList[{status.index}].id" />
<input type="hidden" value="{ml.name}" name="mapList[{status.index}].name" />
<input type="hidden" value="{ml.password}" name="mapList[{status.index}].password" />
</c:forEach>
<input type="submit" value="SUBMIT" />
</form>
</div>
</body>