數據字典：

• 字典表和客戶表的關系
• 配置字典表
• 配置客戶表
• Spring管理映射文件

1 字典表和客戶表的關系

2 配置字典表

3 配置客戶表

4 Spring管理映射文件

異步查詢客戶：

頁面加載的時候，callback函數將對應信息字典表id，通過callback回調函數傳給Action,action調用業務層，業務層調用DAO從數據庫裏面將需要的數據，再由Action傳給頁面。

• 前端頁面
• Action
• Service
• DAO

1 前端交互：

2 Action:

package com.mycrm.web.action;

 
import java.io.IOException;
import java.util.List;

import org.apache.logging.log4j.core.config.json.JsonConfiguration;
import org.apache.struts2.ServletActionContext;

import com.mycrm.domain.BaseDict;
import com.mycrm.service.BaseDictService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

 
import net.sf.json.JSONArray;
import net.sf.json.JsonConfig;

/*
 * 字典的Action
 */
public class BaseDictAction extends ActionSupport implements ModelDriven<BaseDict> {
    // 模型驅動
    private BaseDict baseDict = new BaseDict();

    @Override
    public BaseDict getModel() {
        return baseDict;
    }
    
    
 
//註入Service
    private BaseDictService baseDictService;

    public void setBaseDictService(BaseDictService baseDictService) {
        this.baseDictService = baseDictService;
    }
    
    //根據類型名稱查詢字典的方法，findByTypeCode
    public String findByTypeCode() throws IOException{
        System.out.println("BasedictAction中的findByTypeCode方法執行了");
        List<BaseDict> list = baseDictService.findByTypeCode(baseDict.getDict_type_code());
        //將list轉成JSON，引入包   jsonlib/fastjson
        /**
         * JSONConfig:轉JSON的配置對象
         * JSONArray: 將數組和list集合轉成JSON
         * JSONObject: 將對象和MAP集合轉成JSON
         */
        //jsonConfig.setExcludes去掉不必要的字段
        JsonConfig jsonConfig = new JsonConfig();
        jsonConfig.setExcludes(new String[]{"dict_sort","dict_enable","dict_memo"});
        JSONArray jsonArray = JSONArray.fromObject(list,jsonConfig);
        //將JSON打印到頁面：
        ServletActionContext.getResponse().setContentType("text/html;charset=utf-8");
        ServletActionContext.getResponse().getWriter().println(jsonArray.toString());
        return NONE;
    }
    
}

3 Service:

package com.mycrm.service.impl;

import java.util.List;

import com.mycrm.dao.BaseDictDao;
import com.mycrm.domain.BaseDict;
import com.mycrm.service.BaseDictService;

/**
 * 
 * 字典業務層的實現類
 */
public class BaseDictServiceImpl implements BaseDictService {
    // 註入Dao
    private BaseDictDao baseDictDao;

    public void setBaseDictDao(BaseDictDao baseDictDao) {
        this.baseDictDao = baseDictDao;
    }

    @Override
    public List<BaseDict> findByTypeCode(String dict_type_code) {
        return baseDictDao.findByTypeCode(dict_type_code) ;
    }

}

4 DAO：

package com.mycrm.dao.impl;

import java.util.List;

import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import com.mycrm.dao.BaseDictDao;
import com.mycrm.domain.BaseDict;

public class BaseDictDaoImpl extends HibernateDaoSupport implements BaseDictDao {

    @Override
    public List<BaseDict> findByTypeCode(String dict_type_code) {
         return (List<BaseDict>) this.getHibernateTemplate().find("from BaseDict where dict_type_code=?", dict_type_code);        
    }

}

二 配置數據字典&異步查詢客戶