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【SSH】用户管理新的方法

时间:2015-05-30 15:00:25      阅读:194      评论:0      收藏:0      [点我收藏+]

标签:ssh   管理   开发模式   

实现增删该查的步骤:

一、做ACTION相关的准备:ACTION,jsp,配置.

  1. 创建MYaction extends BaseAction
  2. 定义出Action中的方法,要写出方法名,作用、返回值。
  3. 创建所用到的JSP页面
  4. 配置Action:1.在myAction上写注解@Controller与@Scope("prototype")  2.在strtus.xml中配置这个Action与所用的result。


@Transactional
// @Transactional注解可以被继承,即对子类也有效
子类有此注解,父类无效!

@Controller
@Scope("prototype")
子类不能继承父类,每次子类都要注解。

二、做Service相关准备
  1. 创建接口myService extends BaseDao;
  2. 创建实现类MyService extends BaseDaoImpl
  3. 配置 在MyServiceIMPLE 上添加@service注解
package cn.itcast.oa.base;

import java.lang.reflect.ParameterizedType;

import javax.annotation.Resource;

import cn.itcast.oa.service.DepartmentService;
import cn.itcast.oa.service.RoleService;
import cn.itcast.oa.service.UserService;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public abstract class BaseAction<T> extends ActionSupport implements ModelDriven<T>{

	@Resource
	protected RoleService roleService;
	@Resource
	protected DepartmentService departmentService;
	@Resource
	protected UserService userService;

	protected T model;

	public BaseAction() {
		try {
			// 得到model的类型信息   getClass得到子类,<span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px;">getGenericSuperclass()得到该子类的父类,也就是该方法</span>
<span style="white-space:pre">			</span>//得到真实的参数类型<span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px;">ParameterizedType </span>
<span style="white-space:pre">			</span>//得到第一个参数的真实参数类型
			ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();
			Class clazz = (Class) pt.getActualTypeArguments()[0];

			// 通过反射生成model的实例
			model = (T) clazz.newInstance();
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}

	public T getModel() {
		return model;
	}
}

package cn.itcast.oa.base;

import java.util.List;

public interface BaseDao<T> {

	/**
	 * 保存实体
	 * 
	 * @param entity
	 */
	void save(T entity);

	/**
	 * 删除实体
	 * 
	 * @param id
	 */
	void delete(Long id);

	/**
	 * 更新实体
	 * 
	 * @param entity
	 */
	void update(T entity);

	/**
	 * 查询实体,如果id为null,则返回null,并不会抛异常。
	 * 
	 * @param id
	 * @return
	 */
	T getById(Long id);

	/**
	 * 查询实体
	 * 
	 * @param ids
	 * @return
	 */
	List<T> getByIds(Long[] ids);

	/**
	 * 查询所有
	 * 
	 * @return
	 */
	List<T> findAll();
}

package cn.itcast.oa.base;

import java.lang.reflect.ParameterizedType;
import java.util.Collections;
import java.util.List;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.transaction.annotation.Transactional;

// @Transactional注解可以被继承,即对子类也有效
@Transactional
@SuppressWarnings("unchecked")
public abstract class BaseDaoImpl<T> implements BaseDao<T> {

	@Resource
	private SessionFactory sessionFactory;
	protected Class<T> clazz; // 这是一个问题!

	public BaseDaoImpl() {
		// 通过反射得到T的真实类型
		ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();
		this.clazz = (Class) pt.getActualTypeArguments()[0];

		System.out.println("clazz = " + clazz.getName());
	}

	public void save(T entity) {
		getSession().save(entity);
	}

	public void update(T entity) {
		getSession().update(entity);
	}

	public void delete(Long id) {
		Object obj = getSession().get(clazz, id);
		getSession().delete(obj);
	}

	public T getById(Long id) {
		if (id == null) {
			return null;
		}
		return (T) getSession().get(clazz, id);
	}

	public List<T> getByIds(Long[] ids) {
		if (ids == null || ids.length == 0) {
			return Collections.EMPTY_LIST;
		}

		return getSession().createQuery(//
				"FROM " + clazz.getSimpleName() + " WHERE id IN(:ids)")//
				.setParameterList("ids", ids)//
				.list();
	}

	public List<T> findAll() {
		return getSession().createQuery(//
				"FROM " + clazz.getSimpleName())//
				.list();
	}

	/**
	 * 获取当前可用的Session
	 * 
	 * @return
	 */
	protected Session getSession() {
		return sessionFactory.getCurrentSession();
	}

}

三、填空
  1. ACTION方法
  2. 新增的Service方法
  3. JSP页面的内容
  • 拷贝静态页面中的源代码到JSP中
  • 包含进来的公共资源
  • <%@ include file ="../public/common.jspf" %>
  • 把../ 替换成 ${pageContext.request.contextPath}/
  • 修改页面




1. 创建实体 

bean方法,并且添加get,set方法

package cn.itcast.oa.domain;


import java.util.HashSet;
import java.util.Set;


/**
 * 用户
 * @author tyg
 * 
 */
public class User {
<span style="white-space:pre">	</span>private Long id;
<span style="white-space:pre">	</span>private Department department;
<span style="white-space:pre">	</span>private Set<Role> roles = new HashSet<Role>();


<span style="white-space:pre">	</span>private String loginName; // 登录名
<span style="white-space:pre">	</span>private String password; // 密码
<span style="white-space:pre">	</span>private String name; // 真实姓名
<span style="white-space:pre">	</span>private String gender; // 性别
<span style="white-space:pre">	</span>private String phoneNumber; // 电话号码
<span style="white-space:pre">	</span>private String email; // 电子邮件
<span style="white-space:pre">	</span>private String description; // 说明


<span style="white-space:pre">	</span>public Long getId() {
<span style="white-space:pre">		</span>return id;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setId(Long id) {
<span style="white-space:pre">		</span>this.id = id;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public Department getDepartment() {
<span style="white-space:pre">		</span>return department;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setDepartment(Department department) {
<span style="white-space:pre">		</span>this.department = department;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public Set<Role> getRoles() {
<span style="white-space:pre">		</span>return roles;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setRoles(Set<Role> roles) {
<span style="white-space:pre">		</span>this.roles = roles;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public String getLoginName() {
<span style="white-space:pre">		</span>return loginName;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setLoginName(String loginName) {
<span style="white-space:pre">		</span>this.loginName = loginName;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public String getPassword() {
<span style="white-space:pre">		</span>return password;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setPassword(String password) {
<span style="white-space:pre">		</span>this.password = password;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public String getName() {
<span style="white-space:pre">		</span>return name;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setName(String name) {
<span style="white-space:pre">		</span>this.name = name;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public String getGender() {
<span style="white-space:pre">		</span>return gender;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setGender(String gender) {
<span style="white-space:pre">		</span>this.gender = gender;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public String getPhoneNumber() {
<span style="white-space:pre">		</span>return phoneNumber;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setPhoneNumber(String phoneNumber) {
<span style="white-space:pre">		</span>this.phoneNumber = phoneNumber;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public String getEmail() {
<span style="white-space:pre">		</span>return email;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setEmail(String email) {
<span style="white-space:pre">		</span>this.email = email;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public String getDescription() {
<span style="white-space:pre">		</span>return description;
<span style="white-space:pre">	</span>}


<span style="white-space:pre">	</span>public void setDescription(String description) {
<span style="white-space:pre">		</span>this.description = description;
<span style="white-space:pre">	</span>}


}
Hbm的方法确定
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">


<hibernate-mapping package="cn.itcast.oa.domain">


<span style="white-space:pre">	</span><class name="User" table="itcast_user">
<span style="white-space:pre">		</span><id name="id">
            <generator class="native"/>
<span style="white-space:pre">		</span></id>
<span style="white-space:pre">		</span><property name="loginName"/>
<span style="white-space:pre">		</span><property name="password"/>
<span style="white-space:pre">		</span><property name="name"/>
<span style="white-space:pre">		</span><property name="gender" />
<span style="white-space:pre">		</span><property name="phoneNumber"/>
<span style="white-space:pre">		</span><property name="email"/>
<span style="white-space:pre">		</span><property name="description"/>
<span style="white-space:pre">		</span>
<span style="white-space:pre">		</span><!-- department属性,本类与Department的多对一 -->
<span style="white-space:pre">		</span><many-to-one name="department" class="Department" column="departmentId"></many-to-one>


<span style="white-space:pre">		</span><!-- roles属性,本类与Role的多对多 -->
<span style="white-space:pre">		</span><set name="roles" table="itcast_user_role">
<span style="white-space:pre">			</span><key column="userId"></key>
<span style="white-space:pre">			</span><many-to-many class="Role" column="roleId"></many-to-many>
<span style="white-space:pre">		</span></set>
<span style="white-space:pre">		</span>
<span style="white-space:pre">	</span></class>
<span style="white-space:pre">	</span>
</hibernate-mapping>
二、ACTION方法,相应的方法

package cn.itcast.oa.view.action;

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

import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import cn.itcast.oa.base.BaseAction;
import cn.itcast.oa.domain.Department;
import cn.itcast.oa.domain.Role;
import cn.itcast.oa.domain.User;
import cn.itcast.oa.util.DepartmentUtils;

import com.opensymphony.xwork2.ActionContext;

@Controller
@Scope("prototype")
public class UserAction extends BaseAction<User> {

	private Long departmentId;
	private Long[] roleIds;

	/** 列表 */
	public String list() throws Exception {
		List<User> userList = userService.findAll();
		ActionContext.getContext().put("userList", userList);
		return "list";
	}

	/** 删除 */
	public String delete() throws Exception {
		userService.delete(model.getId());
		return "toList";
	}

	/** 添加页面 */
	public String addUI() throws Exception {
		// 准备数据:departmentList,显示为树状结构
		List<Department> topList = departmentService.findTopList();
		List<Department> departmentList = DepartmentUtils.getAllDepartments(topList);
		ActionContext.getContext().put("departmentList", departmentList);
	
		// 准备数据:roleList
		List<Role> roleList = roleService.findAll();
		ActionContext.getContext().put("roleList", roleList);

		return "saveUI";
	}

	/** 添加 */
	public String add() throws Exception {
		// 1,新建对象并设置属性(也可以使用model)
		Department department = departmentService.getById(departmentId);
		model.setDepartment(department);

		List<Role> roleList = roleService.getByIds(roleIds);
		model.setRoles(new HashSet<Role>(roleList));

		String passwdMD5 = DigestUtils.md5Hex("1234");
		model.setPassword(passwdMD5); // 默认密码为1234,应使用MD5摘要

		// 2,保存到数据库
		userService.save(model);

		return "toList";
	}  

	/** 修改页面 */
	public String editUI() throws Exception {
		// 准备数据:departmentList,显示为树状结构
		List<Department> topList = departmentService.findTopList();
		List<Department> departmentList = DepartmentUtils.getAllDepartments(topList);
		ActionContext.getContext().put("departmentList", departmentList);
	
		// 准备数据:roleList
		List<Role> roleList = roleService.findAll();
		ActionContext.getContext().put("roleList", roleList);

		// 准备回显的数据
		User user = userService.getById(model.getId());
		ActionContext.getContext().getValueStack().push(user);
		if (user.getDepartment() != null) {
			departmentId = user.getDepartment().getId();
		}
		if (user.getRoles().size() > 0) {
			roleIds = new Long[user.getRoles().size()];
			int index = 0;
			for (Role role : user.getRoles()) {
				roleIds[index++] = role.getId();
			}
		}

		return "saveUI";
	}

	/** 修改 */
	public String edit() throws Exception {
		// 1,从数据库中取出原对象
		User user = userService.getById(model.getId());

		// 2,设置要修改的属性
		// >> 普通属性
		user.setLoginName(model.getLoginName());
		user.setName(model.getName());
		user.setGender(model.getGender());
		user.setPhoneNumber(model.getPhoneNumber());
		user.setEmail(model.getEmail());
		user.setDescription(model.getDescription());
		// >> 所属部门
		Department department = departmentService.getById(departmentId);
		user.setDepartment(department);
		// >> 关联的岗位
		List<Role> roleList = roleService.getByIds(roleIds);
		user.setRoles(new HashSet<Role>(roleList));

		// 3,更新到数据库
		userService.update(user);

		return "toList";
	}

	/** 初始化密码为“1234” */
	public String initPassword() throws Exception {
		// 1,从数据库中取出原对象
		User user = userService.getById(model.getId());

		// 2,设置要修改的属性(要使用MD5摘要)
		String passwdMD5 = DigestUtils.md5Hex("1234");
		user.setPassword(passwdMD5);

		// 3,更新到数据库
		userService.update(user);

		return "toList";
	}

	// -------

	public Long getDepartmentId() {
		return departmentId;
	}

	public void setDepartmentId(Long departmentId) {
		this.departmentId = departmentId;
	}

	public Long[] getRoleIds() {
		return roleIds;
	}

	public void setRoleIds(Long[] roleIds) {
		this.roleIds = roleIds;
	}

}

三、JSP页面,根据ACIOTN添加相应的实体,配置相应的structs.xml配置相应的内容

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">


<struts>
	<!-- 配置为开发模式 -->
    <constant name="struts.devMode" value="true" />
	<!-- 配置扩展名为action -->
    <constant name="struts.action.extension" value="action" />
    <!-- 配置主题 -->
    <constant name="struts.ui.theme" value="simple" />






    <package name="default" namespace="/" extends="struts-default">
		
		<!-- 测试用的action,当与Spring整合后,class属性写的就是Spring中bean的名称 -->
		<action name="test" class="testAction">
			<result name="success">/test.jsp</result>
		</action>




		<!-- 岗位管理 -->
		<action name="roleAction_*" class="roleAction" method="{1}">
			<result name="list">/WEB-INF/jsp/roleAction/list.jsp</result>
			<result name="addUI">/WEB-INF/jsp/roleAction/addUI.jsp</result>
			<result name="editUI">/WEB-INF/jsp/roleAction/editUI.jsp</result>
			<result name="toList" type="redirectAction">roleAction_list</result>
		</action>
		
		
		<!-- 部门管理 -->
		<action name="departmentAction_*" class="departmentAction" method="{1}">
			<result name="list">/WEB-INF/jsp/departmentAction/list.jsp</result>
			<result name="saveUI">/WEB-INF/jsp/departmentAction/saveUI.jsp</result>
			<result name="toList" type="redirectAction">departmentAction_list?parentId=${parentId}</result>
		</action>


		
		<strong><!-- 用户管理 -->
		<action name="userAction_*" class="userAction" method="{1}">
			<result name="list">/WEB-INF/jsp/userAction/list.jsp</result>
			<result name="saveUI">/WEB-INF/jsp/userAction/saveUI.jsp</result>
			<result name="toList" type="redirectAction">userAction_list</result>
		</action></strong>
		


    </package>


</struts>


四、创建接口,创建实现类

package cn.itcast.oa.service;

import cn.itcast.oa.base.BaseDao;
import cn.itcast.oa.domain.User;

public interface UserService extends BaseDao<User> {

}

package cn.itcast.oa.service.impl;

import org.springframework.stereotype.Service;

import cn.itcast.oa.base.BaseDaoImpl;
import cn.itcast.oa.domain.User;
import cn.itcast.oa.service.UserService;

@Service
public class UserServiceImpl extends BaseDaoImpl<User> implements UserService{

}

package cn.itcast.oa.base;

import java.lang.reflect.ParameterizedType;
import java.util.Collections;
import java.util.List;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.transaction.annotation.Transactional;

// @Transactional注解可以被继承,即对子类也有效
@Transactional
@SuppressWarnings("unchecked")
public abstract class BaseDaoImpl<T> implements BaseDao<T> {

	@Resource
	private SessionFactory sessionFactory;
	protected Class<T> clazz; // 这是一个问题!

	public BaseDaoImpl() {
		// 通过反射得到T的真实类型
		ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();
		this.clazz = (Class) pt.getActualTypeArguments()[0];

		System.out.println("clazz = " + clazz.getName());
	}

	public void save(T entity) {
		getSession().save(entity);
	}

	public void update(T entity) {
		getSession().update(entity);
	}

	public void delete(Long id) {
		Object obj = getSession().get(clazz, id);
		getSession().delete(obj);
	}

	public T getById(Long id) {
		if (id == null) {
			return null;
		}
		return (T) getSession().get(clazz, id);
	}

	public List<T> getByIds(Long[] ids) {
		if (ids == null || ids.length == 0) {
			return Collections.EMPTY_LIST;
		}

		return getSession().createQuery(//
				"FROM " + clazz.getSimpleName() + " WHERE id IN(:ids)")//
				.setParameterList("ids", ids)//
				.list();
	}

	public List<T> findAll() {
		return getSession().createQuery(//
				"FROM " + clazz.getSimpleName())//
				.list();
	}

	/**
	 * 获取当前可用的Session
	 * 
	 * @return
	 */
	protected Session getSession() {
		return sessionFactory.getCurrentSession();
	}

}



五、添加ACTION,添加事务

package cn.itcast.oa.view.action;

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

import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import cn.itcast.oa.base.BaseAction;
import cn.itcast.oa.domain.Department;
import cn.itcast.oa.domain.Role;
import cn.itcast.oa.domain.User;
import cn.itcast.oa.util.DepartmentUtils;

import com.opensymphony.xwork2.ActionContext;

@Controller
@Scope("prototype")
public class UserAction extends BaseAction<User> {

	private Long departmentId;
	private Long[] roleIds;

	/** 列表 */
	public String list() throws Exception {
		List<User> userList = userService.findAll();
		ActionContext.getContext().put("userList", userList);
		return "list";
	}

	/** 删除 */
	public String delete() throws Exception {
		userService.delete(model.getId());
		return "toList";
	}

	/** 添加页面 */
	public String addUI() throws Exception {
		// 准备数据:departmentList,显示为树状结构
		List<Department> topList = departmentService.findTopList();
		List<Department> departmentList = DepartmentUtils.getAllDepartments(topList);
		ActionContext.getContext().put("departmentList", departmentList);
	
		// 准备数据:roleList
		List<Role> roleList = roleService.findAll();
		ActionContext.getContext().put("roleList", roleList);

		return "saveUI";
	}

	/** 添加 */
	public String add() throws Exception {
		// 1,新建对象并设置属性(也可以使用model)
		Department department = departmentService.getById(departmentId);
		model.setDepartment(department);

		List<Role> roleList = roleService.getByIds(roleIds);
		model.setRoles(new HashSet<Role>(roleList));

		String passwdMD5 = DigestUtils.md5Hex("1234");
		model.setPassword(passwdMD5); // 默认密码为1234,应使用MD5摘要

		// 2,保存到数据库
		userService.save(model);

		return "toList";
	}  

	/** 修改页面 */
	public String editUI() throws Exception {
		// 准备数据:departmentList,显示为树状结构
		List<Department> topList = departmentService.findTopList();
		List<Department> departmentList = DepartmentUtils.getAllDepartments(topList);
		ActionContext.getContext().put("departmentList", departmentList);
	
		// 准备数据:roleList
		List<Role> roleList = roleService.findAll();
		ActionContext.getContext().put("roleList", roleList);

		// 准备回显的数据
		User user = userService.getById(model.getId());
		ActionContext.getContext().getValueStack().push(user);
		if (user.getDepartment() != null) {
			departmentId = user.getDepartment().getId();
		}
		if (user.getRoles().size() > 0) {
			roleIds = new Long[user.getRoles().size()];
			int index = 0;
			for (Role role : user.getRoles()) {
				roleIds[index++] = role.getId();
			}
		}

		return "saveUI";
	}

	/** 修改 */
	public String edit() throws Exception {
		// 1,从数据库中取出原对象
		User user = userService.getById(model.getId());

		// 2,设置要修改的属性
		// >> 普通属性
		user.setLoginName(model.getLoginName());
		user.setName(model.getName());
		user.setGender(model.getGender());
		user.setPhoneNumber(model.getPhoneNumber());
		user.setEmail(model.getEmail());
		user.setDescription(model.getDescription());
		// >> 所属部门
		Department department = departmentService.getById(departmentId);
		user.setDepartment(department);
		// >> 关联的岗位
		List<Role> roleList = roleService.getByIds(roleIds);
		user.setRoles(new HashSet<Role>(roleList));

		// 3,更新到数据库
		userService.update(user);

		return "toList";
	}

	/** 初始化密码为“1234” */
	public String initPassword() throws Exception {
		// 1,从数据库中取出原对象
		User user = userService.getById(model.getId());

		// 2,设置要修改的属性(要使用MD5摘要)
		String passwdMD5 = DigestUtils.md5Hex("1234");
		user.setPassword(passwdMD5);

		// 3,更新到数据库
		userService.update(user);

		return "toList";
	}

	// -------

	public Long getDepartmentId() {
		return departmentId;
	}

	public void setDepartmentId(Long departmentId) {
		this.departmentId = departmentId;
	}

	public Long[] getRoleIds() {
		return roleIds;
	}

	public void setRoleIds(Long[] roleIds) {
		this.roleIds = roleIds;
	}

}

七、填空

添加ACTION方法,新增Service业务的方法,添加JSP方法,添加DAO方法。

【SSH】用户管理新的方法

标签:ssh   管理   开发模式   

原文地址:http://blog.csdn.net/zaq2995160/article/details/46273805

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