跟我一起学extjs5(30--加入模块和菜单定义[3后台系统数据的组织和生成])

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跟我一起学extjs5(30--加入模块和菜单定义[3后台系统数据的组织和生成])

对于大多web程序来说，后台是完成控制和处理的，前台就是一个展示工具，这个系统也是这样。在上一节中建立了四个模块，下面开始设计前后台的交互。将系统信息和模块、菜单信息传到前台，由前台来进行展示。

首先新建一个java bean类用来存放各种需要传到前台的数据，里面包括：系统信息、操作人员信息、服务人员信息、模块信息、菜单。现在只加入了这几个，以后还要加入各种各样的权限设置。在com.jfok.server.common中新增包info,在这下面加入四个class。

package com.jfok.server.common.info;

import java.io.Serializable;

@SuppressWarnings("serial")
// 这是服务单位情况的设置，也是放在数据库里的，可以进行修改
public class ServiceInfo implements Serializable {

	private String tf_serviceDepartment;// 服务单位
	private String tf_serviceMen;// 服务人员
	private String tf_serviceTelnumber;// 联系电话
	private String tf_serviceFaxnumber;// 传真
	private String tf_serviceEmail;// 电子邮件
	private String tf_serviceHomepage;// 主页
	private String tf_serviceQQ;// ＱＱ号
	private String tf_copyrightOwner;// 版权所有单位
	private String tf_copyrightInfo;// 版权信息

	public ServiceInfo() {

	}
}

package com.jfok.server.common.info;

import java.io.Serializable;

@SuppressWarnings("serial")
// 这是系统总体情况的设置，也是放在数据库里的，可以进行修改
public class SystemInfo implements Serializable {

	private String tf_systemName; // 系统名称
	private String tf_systemVersion; // 版本号
	private String tf_systemAddition;// 附加设置

	public SystemInfo() {

	}
}

import java.io.Serializable;
import java.util.Date;

@SuppressWarnings("serial")
// 这是用户单位和登录用户的信息
public class UserInfo implements Serializable {

	private String tf_userdwmc;// 使用单位名称
	private Date tf_userStartdate;// 开始使用时间
	private Integer tf_userId;// 用户id
	private String tf_loginName;// 用户登录名
	private String tf_userName;// 用户姓名
	private String tf_departmentId = null;// 用户部门id
	private String tf_departmentName = null;// 用户部门名称

	public UserInfo() {

	}
}

package com.jfok.server.common.info;

import java.io.Serializable;
import java.util.List;
import java.util.Set;

import org.codehaus.jackson.map.annotate.JsonSerialize;

import com.jfok.server.hibernate.system._MenuGroup;
import com.jfok.server.hibernate.system._Module;

/**
 * 用于向客户端返回系统的模块信息和登录人员的信息的类
 * 
 * @author jfok
 * 
 */
@SuppressWarnings("serial")
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
public class ApplicationInfo implements Serializable {

	// 这是系统总体情况的设置，也是放在数据库里的，可以进行修改
	private SystemInfo systemInfo;

	// 这是用户单位和登录用户的信息
	private UserInfo userInfo;

	// 这是服务单位情况的设置，也是放在数据库里的，可以进行修改
	private ServiceInfo serviceInfo;

	// 系统中模块的字义和菜单的定义
	private Set<_Module> tf_Modules; // 系统模块定义信息

	private List<_MenuGroup> tf_MenuGroups; // 系统菜单

	// 系统中各种权限的定义

	// 其他一些附加信息需要传送到前台的
	private Integer tf_additionFileMaxMB; // 上传文件的最大大小
	private String tf_previewExts; // 可预览的文件的后缀名 ，用逗号分开

	public ApplicationInfo() {
	}
}

以上类的getter和setter全部自己加一下。

继续在com.jfok.server.service中新增一个类用来生成数据的服务类 ApplicationService.java：

package com.jfok.server.service;

import java.util.Date;
import java.util.HashSet;
import java.util.List;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.jfok.server.DAO.SystemBaseDAO;
import com.jfok.server.common.info.ApplicationInfo;
import com.jfok.server.common.info.ServiceInfo;
import com.jfok.server.common.info.SystemInfo;
import com.jfok.server.common.info.UserInfo;

import com.jfok.server.hibernate.system._MenuGroup;
import com.jfok.server.hibernate.system._Module;

@Service
public class ApplicationService {

	@Resource
	private SystemBaseDAO systemBaseDAO;

	// 事务注释
	@SuppressWarnings("unchecked")
	@Transactional(propagation = Propagation.REQUIRED, readOnly = true)
	public ApplicationInfo getApplicationInfo(HttpServletRequest request) {

		ApplicationInfo result = new ApplicationInfo();
		
		// 以上内容暂时为自定义的，以后会改为从数据库和登录信息中读取。
		SystemInfo systemInfo = new SystemInfo();
		systemInfo.setTf_systemName("自定义的中小型管理系统");
		systemInfo.setTf_systemVersion("2014.09.28");
		result.setSystemInfo(systemInfo);
		
		UserInfo userInfo = new UserInfo();
		userInfo.setTf_userdwmc("无锡市宏宇电子有限公司");
		userInfo.setTf_userStartdate(new Date());
		userInfo.setTf_userName("管理员");
		userInfo.setTf_loginName("admin");
		userInfo.setTf_userId(0);
		userInfo.setTf_departmentId("00");
		userInfo.setTf_departmentName("工程部");
		result.setUserInfo(userInfo);
		
		ServiceInfo serviceInfo = new ServiceInfo();
		serviceInfo.setTf_serviceDepartment("熙旺公司");
		serviceInfo.setTf_serviceMen("蒋锋");
		serviceInfo.setTf_serviceTelnumber("1320528xxxx");
		serviceInfo.setTf_serviceFaxnumber("0510-88888888");
		serviceInfo.setTf_serviceQQ("7858xxxx");
		serviceInfo.setTf_serviceEmail("[email protected]");
		serviceInfo.setTf_serviceHomepage("www.www.net");
		serviceInfo.setTf_copyrightInfo("熙旺公司版权所有");
		serviceInfo.setTf_copyrightOwner("熙旺软件");

		result.setServiceInfo(serviceInfo);
		
		// 把所有的模块定义信息加进去
		result
				.setTf_Modules(new HashSet<_Module>((List<_Module>) systemBaseDAO.findAll(_Module.class)));

		// 加入菜单分组
		result.setTf_MenuGroups((List<_MenuGroup>) systemBaseDAO.findAll(_MenuGroup.class));
		
		for (_MenuGroup mg : result.getTf_MenuGroups()) {
			// 加入这一条是为了让菜单组下面的菜单也执行sql 语句加进来，不然的话，返回以后mvc要加入菜单，
			// 就会在执行sql的时候因为session已经关闭而报错
			mg.getTf_menuModules().size();
		}
		return result;
	}
}

在上面用到了DAO类，我自己做了一个系统的基本DAO类接品和类，放在包com.jfok.server.DAO之下。

package com.jfok.server.DAO;

import java.util.List;

@SuppressWarnings("rawtypes")
public interface ISystemBaseDAO {

	public void save(Object record);

	public void attachDirty(Object record, Object old);

	public void delete(Object record);

	public Object findById(Class<?> className, Object id);

	public Object findById(String beanClassName, Object id);

	public List findByProperty(Class<?> className, String propertyName,
			Object value);

	public Object findByPropertyFirst(Class<?> className, String propertyName,
			Object value);
	
	public List findByString(Class<?> className, String value);

	public List findByProperty(String beanClassName, String propertyName,
			Object value);

	public List findByPropertyWithOtherCondition(Class<?> className, String propertyName,
			Object value , String otherCondString);
	
	public List findByLikeProperty(String beanClassName, String propertyName,
			Object value);

	public List findByLikePropertyWithOtherCondition(String beanClassName, String propertyName,
			Object value, String otherCondString);

	public List findByPropertyWithOtherCondition(String beanClassName, String propertyName,
			Object value , String otherCondString);
	
	public List findByPropertyAllSort(String beanClassName, String sort,
			String dir, String propertyName, Object value, String defaultSort,
			String defaultDir);

	public List findAll(Class<?> className);

	public List findAll(String className);

	public List findAllSort(String beanClassName, String sort, String dir);

	List findByPropertyAllSort(Class<?> className, String sort, String dir,
			String propertyName, Object value, String defaultSort, String defaultDir);

}

package com.jfok.server.DAO;

import java.io.Serializable;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import net.sf.ezmorph.object.DateMorpher;
import net.sf.json.util.JSONUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

@Repository
@SuppressWarnings("rawtypes")
public class SystemBaseDAO extends HibernateDaoSupport implements ISystemBaseDAO {

	@Resource
	private SessionFactory mySessionFactory;

	public static SystemBaseDAO systemBaseDAO;

	@PostConstruct
	public void InjectedSessionFactory() {
		//System.out.println("system base dao impl injected sessionFactory");
		super.setSessionFactory(mySessionFactory);
		systemBaseDAO = this;
	}

	public SystemBaseDAO() {
		super();
		//System.out.println("system base dao impl created");
		String[] dateFormats = new String[] { "yyyy-MM-dd" };
		JSONUtils.getMorpherRegistry().registerMorpher(new DateMorpher(dateFormats));
		//System.out.println("json tobean dataformats created");
	}

	private static final Log log = LogFactory.getLog(SystemBaseDAO.class);

	@Override
	public void save(Object record) {
		getHibernateTemplate().save(record);
		log.debug("new record saved:" + record.getClass().getSimpleName() + ":"
				+ record.toString());
	}

	@Override
	public void attachDirty(Object record, Object old) {
		getHibernateTemplate().saveOrUpdate(record);
		log.debug("save record:" + record.getClass().getSimpleName() + ":"
				+ record.toString());
	}

	@Override
	public void delete(Object record) {
		getHibernateTemplate().delete(record);
		log.debug("delete record:" + record.getClass().getSimpleName() + ":"
				+ record.toString());
	}

	@Override
	public Object findById(Class<?> className, Object id) {
		return findById(className.getName(), id);
	}

	@Override
	public Object findById(String beanClassName, Object id) {
		Object record;
		try {
			record = getHibernateTemplate().get(beanClassName, Integer.parseInt(id.toString()));
		} catch (Exception e) {
			record = getHibernateTemplate().get(beanClassName, (Serializable) id);
		}
		// log.debug("get record " + beanClassName + " key:" + id + ":" + record);
		return record;
	}

	@Override
	public List<?> findAll(Class<?> className) {
		return findAll(className.getName());
	}

	@Override
	public List<?> findAll(String className) {
		log.debug("find all:" + className);
		String queryString = "from " + className;
		return getHibernateTemplate().find(queryString);
	}

	public void setMySessionFactory(SessionFactory mySessionFactory) {
		this.mySessionFactory = mySessionFactory;
	}

	@Override
	public List<?> findAllSort(String beanClassName, String sort, String dir) {
		log.debug("find all:" + beanClassName + "---sort:" + sort + "--" + dir);
		String queryString;
		if (sort == null || sort.length() == 0)
			queryString = "from " + beanClassName + " as model ";
		else
			queryString = "from " + beanClassName + " as model " + " order by " + sort + " "
					+ dir;
		return getHibernateTemplate().find(queryString);
	}

	@Override
	public List<?> findByPropertyAllSort(Class<?> className, String sort, String dir,
			String propertyName, Object value, String defaultSort, String defaultDir) {
		return findByPropertyAllSort(className.getName(), sort, dir, propertyName, value,
				defaultSort, defaultDir);
	}

	@Override
	public List<?> findByPropertyAllSort(String beanClassName, String sort, String dir,
			String propertyName, Object value, String defaultSort, String defaultDir) {

		log.debug("find all:" + beanClassName + "---sort:" + sort + "--" + dir);

		if (propertyName.indexOf(".") > 0)
			return findByPropertyCriteria(beanClassName, sort, dir, propertyName, value,
					defaultSort, defaultDir);

		String queryString;
		String otherFilter = "";
		if (sort == null || sort.length() == 0) {
			if (defaultSort != null) {
				sort = defaultSort;
				dir = defaultDir;
			}
		}
		if (sort == null || sort.length() == 0)
			queryString = "from " + beanClassName + " as model where model." + propertyName
					+ "= ? " + otherFilter;
		else
			queryString = "from " + beanClassName + " as model where model." + propertyName
					+ "= ? " + otherFilter + " order by " + sort + " " + dir;
	
		//System.out.println(queryString);
		
		return getHibernateTemplate().find(queryString, value);
	}

	public List<?> findByPropertyCriteria(String beanClassName, String sort, String dir,
			String propertyName, Object value, String defaultSort, String defaultDir) {
		Session session = getSessionFactory().openSession();
		Criteria criteria = session.createCriteria(beanClassName);
		String[] props = propertyName.split("\\.");
		Criteria subCriteria = criteria.createCriteria(props[0]);
		subCriteria.add(Restrictions.eq(props[1], value));
		if (sort != null) {
			if (dir == null || !dir.toLowerCase().equals("desc"))
				criteria.addOrder(Order.asc(sort));
			else
				criteria.addOrder(Order.desc(sort));
		} else if (defaultSort != null) {
			if (defaultDir == null || !defaultDir.toLowerCase().equals("desc"))
				criteria.addOrder(Order.asc(defaultSort));
			else
				criteria.addOrder(Order.desc(defaultSort));
		}
		List<?> result = criteria.list();
		session.close();
		return result;
	}

	@Override
	public Object findByPropertyFirst(Class<?> className, String propertyName, Object value) {
		List<?> result = findByProperty(className, propertyName, value);
		if (result.size() == 0)
			return null;
		else
			return result.get(0);
	}

	// @Override
	public Object findByPropertyFirstWithOtherCondition(Class<?> className,
			String propertyName, Object value, String otherCondString) {
		List<?> result = findByPropertyWithOtherCondition(className, propertyName, value,
				otherCondString);
		if (result.size() == 0)
			return null;
		else
			return result.get(0);
	}

	@Override
	public List<?> findByProperty(Class<?> className, String propertyName, Object value) {
		return findByPropertyWithOtherCondition(className.getSimpleName(), propertyName,
				value, null);
	}

	@Override
	public List<?> findByProperty(String beanClassName, String propertyName, Object value) {
		return findByPropertyWithOtherCondition(beanClassName, propertyName, value, null);

	}

	@Override
	public List<?> findByPropertyWithOtherCondition(Class<?> className,
			String propertyName, Object value, String otherCondString) {
		return findByPropertyWithOtherCondition(className.getSimpleName(), propertyName,
				value, otherCondString);

	}

	@SuppressWarnings("unchecked")
	@Override
	public List<?> findByPropertyWithOtherCondition(String beanClassName,
			String propertyName, Object value, String otherCondString) {
		String queryString = "from " + beanClassName + " as model where model."
				+ propertyName + "= ?";
		if (otherCondString != null && otherCondString.length() > 1) {
			queryString = queryString + " and (" + otherCondString + ")";
		}
		List<Object> result = getHibernateTemplate().find(queryString, value);

		log.debug(String.format("finding %s with property:%s value: %s : record number:%d",
				beanClassName, propertyName, value, result.size()));
		return result;
	}

	@SuppressWarnings("unchecked")
	@Override
	public List<?> findByString(Class<?> className, String value) {
		String queryString = "from " + className.getSimpleName() + " as model where " + value;
		List<Object> result = getHibernateTemplate().find(queryString);
		log.debug(String.format("finding %s with string:%s : record number:%d",
				className.getSimpleName(), value, result.size()));
		return result;

	}

	@Override
	public List findByLikeProperty(String beanClassName, String propertyName, Object value) {

		return findByLikePropertyWithOtherCondition(beanClassName, propertyName, value, "");

	}

	@Override
	public List findByLikePropertyWithOtherCondition(String beanClassName,
			String propertyName, Object value, String otherCondString) {
		String queryString = "from " + beanClassName + " as model where model."
				+ propertyName + " like ? ";

		if (otherCondString != null && otherCondString.length() > 1) {
			queryString = queryString + " and (" + otherCondString + ")";
		}

		List<?> result = getHibernateTemplate().find(queryString, value);

		log.debug(String.format(
				"finding %s with like property:%s value: %s : record number:%d", beanClassName,
				propertyName, value, result.size()));
		return result;
	}

}

最后加入spring MVC的控制类，在com.jfok.server.controller中新增一个类ApplicationController.java:

package com.jfok.server.controller;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.jfok.server.common.info.ApplicationInfo;
import com.jfok.server.service.ApplicationService;

@Controller
public class ApplicationController {

	// spring注释，自动注入ApplicationService 的实例
	@Resource
	private ApplicationService applicationService;

	@RequestMapping("/applicationinfo.do")
	public synchronized @ResponseBody
	ApplicationInfo getApplicationInfo(HttpServletRequest request) {
		return applicationService.getApplicationInfo(request);
	}
}

加好这几个文件后的图示为：