Struts2返回json格式数据代码实例

public class ProInfomaDao extends HibernateDaoSupport {
 private Logger logger = Logger.getLogger(ProInfomaDao.class);
　　/**
   * 查询所有数据
   * @return
   */
  @SuppressWarnings("unchecked")
  public List selBankList() {
    String sql = "SELECT DISTINCT ENAME FROM PM_PROINFO";　　　　　　　　　　　　//填写对应的SQL语句
    List queryList = getSession().createSQLQuery(sql).list();
    List bankList = new ArrayList();
    queryList.add(0, "--请选择--");
    BanknameDto bankDto = null;
    if(queryList.size() == 0){
      logger.info("查不到相关信息！");
    }else{
      for(int i = 0;i 

public class ProInfomaService {
  private ProInfomaDao proInfomaDao;
  public void setProInfomaDao(ProInfomaDao proInfomaDao) {
    this.proInfomaDao = proInfomaDao;
  }
  /**
   * 查询数据
   * @return
   */
  public List selBankList(){
    return proInfomaDao.selBankList();
  }
}

public class ProInfomaAction extends ActionSupport implements ServletRequestAware{
  private static final long serialVersiOnUID= 1L;
  private ProInfomaService proInfomaService;
  private Map resultMap = new HashMap();  
  private JSONObject dataroot;                　　
  private JSONArray bankroot;                  //此处要返回的属性名称，以bankroot为例，要与struts中
  private JSONArray projroot;                  //bankroot且提供get set方法
  private HttpServletRequest request;

  /**
   * 查询银行名称
   * @return
   */
  public String selBankList() {
    List selBank = proInfomaService.selBankList();
    bankroot = JSONArray.fromObject(selBank);
    return SUCCESS;
  }

  public JSONArray getBankroot() {
    return bankroot;
  }

  public void setBankroot(JSONArray bankroot) {
    this.bankroot = bankroot;
  }
  @Override
  public void setServletRequest(HttpServletRequest request) {
    this.request = request;
  }
}

<&＃63;xml version="1.0" encoding="UTF-8" &＃63;>


  
　　 
    
      
      
      
        bankroot