JavaWeb-Maven构建ssh框架
1 环境
搭建SpringMVC+Spring+Hibernate4 ,Maven环境、 需要MySQL 数据库支持，使用的编程工具Eclipse
搭建完毕后的项目架构如下：
2 新建Maven项目
2.1 新建Maven项目
2.2 选择web项目
点击【finish】
3 新建的项目架构
新建完毕，项目报错，并且缺少目录。修改如下：
3.1 显示所有的目录
目录结构为：
src/main/resources
src/main/java
src/test/resources
src/test/java
【右键项目】-->【Build Path】--> 【Configure Build Path】
会看见所有的目录，没有看见的目录拉其滚动条就可看见
然后点击【Apply】-->【OK】即可。
如果没有出现，则重复以上步骤，然后双击【Allow ouput folders for source folders】，再进行【Apply】。
最后项目结构如下：
以上结构还需要添加一些东西，选中【项目右键】--> 【Build Path】--> 【new Source Folder】--> 【输入文件夹名称】--> 【Finish】.
这里新建src/test/resources
目录如下：
3.2 修改项目的编辑版本
默认项目的编译级别是1.5 ，有一些JDK的新特性可能会报错，所以需要更换项目的编译级别。修改如下：
【右键项目】-->【Properties】
去掉选择，更换编译版本1.8
选择【Project Facets】然后修改Java版本，因为安装的是JDK1.8 所以选择1.8
然后点击【Apply】-->【OK】
3.3 加入依赖
结果工程还是报错，因为缺少类javax.servlet.http.HttpServlet，此类在javax包中。
在pom.xml中加入以下依赖：
jstl
jstl
1.2
javax.servlet
servlet-api
2.5
provided
javax.servlet
jsp-api
2.0
provided
查看项目：
3.4 设置部署程序集（Web Deployment Assembly）
右键项目，选择[properties] -->[Deployment Assembly] 如下图:
4 Spring与Hibernate的整合
4.1 基本配置
4.1.1 添加依赖(pom.xml)
org.springframework
spring-core
${spring.version}
org.springframework
spring-beans
${spring.version}
org.springframework
spring-context
${spring.version}
org.springframework
spring-tx
${spring.version}
org.springframework
spring-web
${spring.version}
org.springframework
spring-test
${spring.version}
test
org.springframework
spring-webmvc
${spring.version}
org.springframework
spring-orm
${spring.version}
org.hibernate
hibernate-core
${hibernate.version}
org.hibernate
hibernate-ehcache
${hibernate.version}
net.sf.ehcache
ehcache
2.9.0
log4j
log4j
1.2.17
mysql
mysql-connector-java
5.1.34
com.mchange
c3p0
0.9.5-pre10
com.alibaba
fastjson
1.2.3
com.fasterxml.jackson.core
jackson-annotations
${jackson.version}
com.fasterxml.jackson.core
jackson-core
${jackson.version}
com.fasterxml.jackson.core
jackson-databind
${jackson.version}
org.aspectj
aspectjweaver
1.8.4
jstl
jstl
1.2
javax.servlet
servlet-api
2.5
provided
javax.servlet
jsp-api
2.0
provided
4.1.2 configure.properties
#application configs
#jdbc c3p0 config
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/db_test?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456
#hibernate config
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.format_sql=true
hibernate.hbm2ddl.auto=create
hibernate.cache.use_second_level_cache=true
hibernate.cache.use_query_cache=true
hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory
hibernate.cache.provider_configuration_file_resource_path=ehcache.xml
4.1.3 spring.xml
4.1.4 spring-hibernate.xml
${hibernate.dialect}
${hibernate.show_sql}
${hibernate.format_sql}
${hibernate.hbm2ddl.auto}
${hibernate.cache.use_second_level_cache}
${hibernate.cache.use_query_cache}
${hibernate.cache.region.factory_class}
${hibernate.cache.provider_configuration_file_resource_path}
4.1.5 Log4j的配置
### set log levels ###
log4j.rootLogger = INFO , C , D , E
### console ###
log4j.appender.C = org.apache.log4j.ConsoleAppender
log4j.appender.C.Target = System.out
log4j.appender.C.layout = org.apache.log4j.PatternLayout
log4j.appender.C.layout.ConversionPattern = [student][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n
### log file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ./logs/student.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = [student][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n
### exception ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File = ./logs/student_error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = [student][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n
配置结构截图：
4.2 编写Entity
User代码：package cn.ssh.student.entity;
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "t_user")
public class User implements Serializable {
@Id
// 配置自动增长
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
private String userName;
private String password;
private Integer age;
private static final long serialVersionUID = 1L;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName == null ? null : userName.trim();
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password == null ? null : password.trim();
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
@Override
public String toString() {
return "User [id=" + id + ", userName=" + userName + ", password=" + password + ", age=" + age + "]";
}
}
4.3 Dao层
4.3.1 GenericDao接口
package cn.ssh.student.dao;
import java.io.Serializable;
import java.util.List;
public interface GenericDao {
T load(PK id);
T get(PK id);
List findAll();
void persist(T entity);
PK save(T entity);
void saveOrUpdate(T entity);
void delete(PK id);
void flush();
}
4.3.2 UserDao接口
package cn.ssh.student.dao;
import cn.ssh.student.entity.User;
public interface UserDao extends GenericDao {
}
4.3.3 UserDao接口实现类
package cn.ssh.student.dao.impl;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import cn.ssh.student.dao.UserDao;
import cn.ssh.student.entity.User;
@Repository
public class UserDaoImpl implements UserDao {
@Autowired
private SessionFactory sessionFactory;
private Session getCurrentSession() {
return this.sessionFactory.getCurrentSession();
}
@Override
public User load(String id) {
return (User) this.getCurrentSession().load(User.class, id);
}
@Override
public User get(String id) {
return (User) this.getCurrentSession().get(User.class, id);
}
@SuppressWarnings("unchecked")
@Override
public List findAll() {
List Users = this.getCurrentSession().createQuery("from User").setCacheable(true).list();
return Users;
}
@Override
public void persist(User entity) {
this.getCurrentSession().persist(entity);
}
@Override
public String save(User entity) {
return (String) this.getCurrentSession().save(entity);
}
@Override
public void saveOrUpdate(User entity) {
this.getCurrentSession().saveOrUpdate(entity);
}
@Override
public void delete(String id) {
User entity = this.load(id);
this.getCurrentSession().delete(entity);
}
@Override
public void flush() {
this.getCurrentSession().flush();
}
}
项目架构：
4.4 Service层
4.4.1 UserService接口
package cn.ssh.student.service;
import java.util.List;
import cn.ssh.student.entity.User;
public interface UserService {
User load(Integer id);
User get(Integer id);
List findAll();
void persist(User entity);
Integer save(User entity);
void saveOrUpdate(User entity);
void delete(Integer id);
void flush();
}
4.4.2 UserService接口实现类
package cn.ssh.student.service.impl;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import cn.ssh.student.dao.UserDao;
import cn.ssh.student.entity.User;
import cn.ssh.student.service.UserService;
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
@Override
@Transactional(readOnly = true)
public User load(Integer id) {
return userDao.load(id);
}
@Override
@Transactional(readOnly = true)
public User get(Integer id) {
return userDao.get(id);
}
@Override
@Transactional(readOnly = true)
public List findAll() {
return userDao.findAll();
}
@Override
@Transactional
public void persist(User entity) {
userDao.persist(entity);
}
@Override
@Transactional
public Integer save(User entity) {
return userDao.save(entity);
}
@Override
@Transactional
public void saveOrUpdate(User entity) {
userDao.saveOrUpdate(entity);
}
@Override
@Transactional
public void delete(Integer id) {
userDao.delete(id);
}
@Override
@Transactional
public void flush() {
userDao.flush();
}
}
4.5 测试
测试代码：
package cn.ssh.student.service;
import java.util.List;
import org.apache.log4j.Logger;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import cn.ssh.student.entity.User;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:spring.xml", "classpath:spring-hibernate.xml" })
public class UserServiceTest {
private static final Logger LOGGER = Logger.getLogger(UserServiceTest.class);
@Autowired
private UserService userService;
@Test
public void testLoad() {
System.out.println(userService);
}
@Test
public void testGet() {
User user = userService.get(5);
System.out.println(user);
}
@Test
public void testFindAll() {
List users = userService.findAll();
System.out.println(users);
}
@Test
public void testPersist() {
}
@Test
public void testSave() {
User user = new User();
user.setAge(1);
user.setPassword("123");
user.setUserName("李四");
userService.save(user);
}
@Test
public void testSaveOrUpdate() {
}
@Test
public void testDelete() {
}
@Test
public void testFlush() {
}
}
执行testLoad()测试方法，测试成功，数据库自动生成表：
5 整合SpringMVC
5.1 spring-mvc.xml
text/html;charset=UTF-8
application/json;charset=UTF-8
spring-mvc的配置信息可以直接整合在spring-hibernate.xml这个配置文件中。
5.2 web.xml
Archetype Created Web Application
contextConfigLocation
classpath:spring.xml,classpath:spring-hibernate.xml
encodingFilter
org.springframework.web.filter.CharacterEncodingFilter
encoding
UTF-8
forceEncoding
true
encodingFilter
/*
openSessionInViewFilter
org.springframework.orm.hibernate4.support.OpenSessionInViewFilter
singleSession
true
openSessionInViewFilter
*.jsp
org.springframework.web.context.ContextLoaderListener
org.springframework.web.util.IntrospectorCleanupListener
spring mvc servlet
SpringMVC
org.springframework.web.servlet.DispatcherServlet
contextConfigLocation
classpath:spring-mvc.xml
1
SpringMVC
*.do
30
/index.jsp
6 项目运行
内置tomcat运行
启动时为：tomcat7:run 因为在配置pom.xml中配置了tomcat插件的名字。
启动项目：
点击【Run】
启动成功：
7 用户管理
7.1 增加用户
页面预览
添加界面效果如图:
输入内容，并提交
7.1.1 后台代码
Controller层：
// 添加
@RequestMapping("/add")
public String add(User user) {
userService.save(user);
// 重定向到查询所有用户
return "redirect:getAll.do";
}
// 查询所有的用户
@RequestMapping("/getAll")
public String getAll(Model model) {
List list = userService.findAll();
model.addAttribute("userList", list);
return "show";
}
Service层：
@Override
@Transactional
public Integer save(User entity) {
return userDao.save(entity);
}
@Override
@Transactional(readOnly = true)
public List findAll() {
return userDao.findAll();
}
7.1.2 页面代码
add.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" %>
Insert title here
查看所有页面代码（show.jsp）：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
测试
${user.id} ${user.userName} 删除 更新
新增
7.2 查找用户
在浏览器中输入地址：http://localhost:8080/student/getById.do?id=2
7.2.1 后台代码
Controller层：
// 查询某一个用户
@RequestMapping("/getById")
public String getById(Integer id, Model model) {
User user = userService.get(id);
model.addAttribute("user", user);
// 转发到showUser.jsp页面
return "showUser";
}
Service层
@Override
@Transactional(readOnly = true)
public User get(Integer id) {
return userDao.get(id);
}
7.2.2 页面代码
showUser.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" %>
查询单个用户
${user.id} ${user.userName}
7.3 修改用户
查询所有用户，地址：http://localhost:8080/student/getAll.do
点击王武后面的【更新】
结果：
7.3.1 后台代码
Controller层：
@RequestMapping("/update")
public String update(User user){
userService.saveOrUpdate(user);
// 更新成功，重定向查询所有
return "redirect:getAll.do";
}
//更新之前
@RequestMapping("/proupdate")
public String proUpdate(Integer id,Model model){
User user = userService.get(id);
model.addAttribute("user",user);
return "update";
}
Service层：
@Override
@Transactional(readOnly = true)
public User get(Integer id) {
return userDao.get(id);
}
@Override
@Transactional
public void saveOrUpdate(User entity) {
userDao.saveOrUpdate(entity);
}
7.3.2 页面代码
update.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
Insert title here
7.4 删除用户
点击【删除】
7.4.1 后台代码
Controller层：
// 删除某一个用户
@RequestMapping("/delete")
public String delete(Integer id,Model model) {
userService.delete(id);
// 重定向到查询所有的用户
return "redirect:getAll.do";
}
Service层：
@Override
@Transactional
public void delete(Integer id) {
userDao.delete(id);
}
8 项目下载
http://download.csdn.net/download/anoiadream/9935156
9 参考博客
http://blog.csdn.net/Ethan_Fu/article/details/49449369