在struts2的selectbox中检索值

如何解决在struts2的selectbox中检索值

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package vaannila;

import java.util.ArrayList;

import com.opensymphony.xwork2.ActionSupport;

public class RegisterAction extends ActionSupport {

    private String userName;

    private String password;

    private String gender;

    private String about;

    private String country;

    private ArrayList<Country> countryList;

    private String[] community;

    private ArrayList<String> communityList;

    private Boolean  mailingList;

    public String populate() {

        countryList = new ArrayList<Country>();
        countryList.add(new Country(1,\"India\"));
        countryList.add(new Country(2,\"USA\"));
        countryList.add(new Country(3,\"France\"));

        communityList = new ArrayList<String>();
        communityList.add(\"Java\");
        communityList.add(\".Net\");
        communityList.add(\"SOA\");

        community = new String[]{\"Java\",\".Net\"};
        mailingList = true;

        return \"populate\";
    }

    @Override
    public String execute() {
        return SUCCESS;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public String getAbout() {
        return about;
    }

    public void setAbout(String about) {
        this.about = about;
    }

    public String getCountry() {
        return country;
    }

    public void setCountry(String country) {
        this.country = country;
    }

    public ArrayList<Country> getCountryList() {
        return countryList;
    }

    public void setCountryList(ArrayList<Country> countryList) {
        this.countryList = countryList;
    }

    public String[] getCommunity() {
        return community;
    }

    public void setCommunity(String[] community) {
        this.community = community;
    }

    public ArrayList<String> getCommunityList() {
        return communityList;
    }

    public void setCommunityList(ArrayList<String> communityList) {
        this.communityList = communityList;
    }

    public Boolean getMailingList() {
        return mailingList;
    }

    public void setMailingList(Boolean mailingList) {
        this.mailingList = mailingList;
    }

}

index.jsp

      <s:select name=\"country\" list=\"countryList\" listKey=\"countryId\"
    listValue=\"countryName\" headerKey=\"0\" headerValue=\"Country\"
    label=\"Select a country\" />

success.jsp

        Country: <s:property value=\"country\" /><br>

当我在文本框中选择一个值时，它将检索id而不是名称，即当我选择“印度”时，我得到的是1而不是印度。 有什么方法可以检索名称而不是ID？     

解决方法

        必须声明arrayList communityList类型为Country而不是String

private ArrayList<Country> communityList;

确保它在动作类中具有getter方法 然后在jsp中使用以下语法

   <s:iterator value=\"countryList\"> <!-- here myList contains the list of objects -
     <s:property value=\"countryName\" /><br/>
     <s:property value=\"countryId\" /><br/>
   </s:iterator>

根据您编辑的问题，您需要使用countryName作为listKey

<s:select name=\"country\" list=\"countryList\" listKey=\"countryName\" listValue=\"countryName\" headerKey=\"0\" headerValue=\"Country\" label=\"Select country\" />

    ,        确保您有countryList的公共获取者。如果仍然不工作，则查看输出中是否打印了6

<br/>

，以验证循环本身是否正在运行。还要检查控制台中是否有任何异常。