web整合servlet+spring和web整合struts+hibernate+spring

墨蓝 2021-09-30 11:30 278阅读 0赞

1、web整合servlet+spring（在sts中创建javaweb可以参考：[https://www.cnblogs.com/ZXF6/p/11066691.html][https_www.cnblogs.com_ZXF6_p_11066691.html] ，此案例中Dynamic web module version用的是3.1）

（1）  前提sts中已经配置tomcat 服务器、maven和jdk。

（2）导包                                                                                           目录

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70][] ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 1][]

架包下载链接:[https://pan.baidu.com/s/1Er\_HeDA9b5S0fYfKjPhDsw][https_pan.baidu.com_s_1Er_HeDA9b5S0fYfKjPhDsw]  提取码：m71g

（3）①service层：接口

package com.gyf.service;
    public interface IUserService {
    
    	public void add(String username);
    }

实现类：

package com.gyf.service.impl;
    
    import com.gyf.service.IUserService;
    
    public class UserServiceImpl implements IUserService {
    
    	@Override
    	public void add(String username) {
    		System.out.println("添加用户成功！。。。。"+username);
    
    	}
    
    }

②web层

package com.gyf.web.servlet;
    import java.io.IOException;
    import javax.servlet.ServletException;
    import javax.servlet.annotation.WebServlet;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import org.springframework.context.ApplicationContext;
    import org.springframework.web.context.support.WebApplicationContextUtils;
    import com.gyf.service.IUserService;
    /**
     * Servlet implementation class RegisterServlt
     */
    @WebServlet("/register")
    public class RegisterServlet extends HttpServlet {
    	private static final long serialVersionUID = 1L;
        public RegisterServlet() {
            super();    
        } 
    	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    		//获取参数
    		String username=request.getParameter("username");
    		//调用service
    		//service的创建交由spring，并从spring的容器获取user
    		IUserService userService=null;
    		//，开发中，项目只需要加载一次spring的配置文件就行了
    	/*	ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
    		;//这样写会导致浏览器每次刷新都会加载一次spring的配置文件：解决---》配置一个监听器 */
    		//获取applicationContext对象
    		ApplicationContext context=WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());
    		System.out.println(context.hashCode());
    		userService=(IUserService) context.getBean("userService");
    		userService.add(username);
    		//响应
    		response.getWriter().write("register success");	
    	}
    }

③applicationContext.xml（在/src目录下）

④web.xml（在/WebContent/WEB-INF目录下）

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
    id="WebApp_ID" version="3.1">
      <display-name>web-servlet-spring</display-name>
        <welcome-file-list>
         <welcome-file>index.jsp</welcome-file>   
        </welcome-file-list>
      
             <context-param>
               <param-name>contextConfigLocation</param-name>
               <param-value>classpath:applicationContext.xml</param-value>
            </context-param>
           
        
         <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
         </listener>  	     	
        
    </web-app>

⑤index.jsp（在/WebContent目录下）

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>wellcom!</title>
    </head>
    <body>
    你好！
    </body>
    </html>

结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 2][]

总结：大致过程包括：导包、创建servlet和service、写spring的配置文件applicationContext.xml、在web.xml中配置spring的监听等步骤。

2、web整合struts+hibernate+spring（struts-2.3.24-all.zip、spring-framework-3.0.2.RELEASE.zip、hibernate-distribution-3.6.10.Final-dist.zip）

导包：①struts的jar包：解压struts-2.3.24-all.zip后的sturts-2.3.24all\\struts-2.3.34\\apps\\struts2-blank.war\\WEB-INF\\lib目录下内的所有jar；②spring的jar包：基础4+1：\[beans、core、context、expression，commons-logging（struts 已经导入的话，就这个包就不用导入了）\]、aop联盟（aopalliance）、aspect规范（aspect.weaver）、spring   aop、spring aspect 、db:spring-jdbc、spring-tx、测试：spring-test、web开发：spring-web（web.xml加载spring配置文件）、驱动：mysql、连接池：c3p0、整合hibernate:spring-orm(事务管理器)；③hibernate包：hibernate3.jar、jpa文件和required文件下的所有包。log4j-api-2.3.jar/log4j-core-2.3.jar。

架包下载链接:[https://pan.baidu.com/s/1hgT\_HhbVcAtuAMOVOC665g][https_pan.baidu.com_s_1hgT_HhbVcAtuAMOVOC665g]  提取码： bfd9

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 3][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 5][]![20190802101523601.png][]

（一）整合hibernate+spring

（1）po类（persistant object 持久对象,可以看成是与数据库中的表相映射的java对象）和映射文件

①model层：User类

package com.gyf.itedu.model;
    public class User {
    	private Integer id;
    	private String username;
    	private String password;
    	private Integer age;	
    	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;
    	}	
    	public String getPassword() {
    		return password;
    	}	
    	public void setPassword(String password) {
    		this.password = password;
    	}	
    	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 + "]";
    	}
    	public User() {
    		super();
    	}
    	public User(String username, String password, Integer age) {
    		super();
    		this.username = username;
    		this.password = password;
    		this.age = age;
    	}	
    }

User.hbm.xml文件（在model包下）

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE hibernate-mapping PUBLIC
         "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
         "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
     <hibernate-mapping package="com.gyf.itedu.model">
       <class name="User">
           <id name="id">
              <generator class="native"></generator>
           </id>
           <property name="username" length="20"></property>
           <property name="password" length="10"></property>
           <property name="age"></property>
       </class>
     </hibernate-mapping>

②dao层：接口IUserDao

package com.gyf.itedu.dao;
    import com.gyf.itedu.model.User;
    public interface IUserDao {
    	public void add(User user);
    }

实体类：UserDaoImpl

package com.gyf.itedu.dao.impl;
    import org.springframework.orm.hibernate3.HibernateTemplate;
    import com.gyf.itedu.dao.IUserDao;
    import com.gyf.itedu.model.User;
    public class UserDaoImpl implements IUserDao {
    	private HibernateTemplate hibernateTemplate;	
    	public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
    		this.hibernateTemplate = hibernateTemplate;
    	}
    	@Override
    	public void add(User user) {		
    		hibernateTemplate.save(user);		
    	}
    }

③service层：接口

package com.gyf.itedu.service;
    
    import com.gyf.itedu.model.User;
    
    public interface IUserService {
    
    	public void register(User user);
    }

实体类：

package com.gyf.itedu.service.impl;
    import com.gyf.itedu.dao.IUserDao;
    import com.gyf.itedu.model.User;
    import com.gyf.itedu.service.IUserService;
    public class UserServiceImpl implements IUserService {
    	private IUserDao userDao;
    	public void setUserdao(IUserDao userDao) {
    		this.userDao = userDao;
    	}
    	@Override
    	public void register(User user) {		
             userDao.add(user);
    	}
    
    }

④创建itedu数据库就行，里面是空的，没有一张表。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 6][]

编写hibernate.cfg.xml（位于/src下）

<!DOCTYPE hibernate-configuration PUBLIC
         "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
         "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
     
     <hibernate-configuration>
        <session-factory>
           
           <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
           <property name="hibernate.connection.url">jdbc:mysql:///itedu</property>
           <property name="hibernate.connection.username">root</property>
           <property name="hibernate.connection.password">123456</property>
           
           <property name="show_sql">true</property>
           
           <property name="format_sql">true</property>
           
           
                  <property name="hibernate.hbm2ddl.auto">update</property>
                  
            <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>  
             
             <mapping resource="com/gyf/itedu/model/User.hbm.xml"/>     
        </session-factory>
     </hibernate-configuration>

编写applicationContext.xml

⑤配置Hibernate的事务

⑥test层 Demo01类：

package com.gyf.itedu.test;
    
    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 com.gyf.itedu.model.User;
    import com.gyf.itedu.service.IUserService;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(locations="classpath:applicationContext.xml")
    public class Demo01 {
    
    	@Autowired
    	private IUserService userService;
    	@Test
    	public void test1() {
    		//保存一个用户
    		User user=new User("gyf","123",10);
    		userService.register(user);
    	}
    }

（二）简化。去除hibernate.cfg.xml，将它的内容写applicationContext.xml中（先将applicationContext.xml复制一份到/src中再修改）

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:aop="http://www.springframework.org/schema/aop"
         xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
                            https://www.springframework.org/schema/beans/spring-beans.xsd
                            http://www.springframework.org/schema/context
                            https://www.springframework.org/schema/context/spring-context.xsd
                            http://www.springframework.org/schema/aop
                            https://www.springframework.org/schema/aop/spring-aop.xsd
                            http://www.springframework.org/schema/tx
                            https://www.springframework.org/schema/tx/spring-tx.xsd">
          
          <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
          <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
          <property name="jdbcUrl" value="jdbc:mysql:///itedu"></property>
          <property name="user" value="root"></property>
          <property name="password" value="123456"></property>
          </bean>
          
          <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
            
            <property name="dataSource" ref="dataSource"></property>
             
         
       <property name="hibernateProperties">
          <props>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.format_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
          </props>
       </property>  
       
         <property name="mappingLocations" value="classpath:com/gyf/itedu/model/*.hbm.xml"></property> 
          </bean>
         
         <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
            <property name="sessionFactory" ref="sessionFactory"></property>
         </bean >
         
         <bean id="userDao" class="com.gyf.itedu.dao.impl.UserDaoImpl">
              <property name="hibernateTemplate" ref="hibernateTemplate"></property>
         </bean>
         
         <bean id="userService" class="com.gyf.itedu.service.impl.UserServiceImpl">
            <property name="userdao" ref="userDao"></property>
         </bean>
         
         
         
         <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
           <property name="sessionFactory" ref="sessionFactory"></property>
         </bean>
         
         <tx:advice id="txAdvice" transaction-manager="txManager">
           <tx:attributes>
             <tx:method name="register"/>
           </tx:attributes>
         </tx:advice>
         
         <aop:config>
            <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.gyf.itedu.service..*.*(..))"/>
         </aop:config>
         
    </beans>

（三）整合struts+spring

编写action类，并将其配置给spring，spring可以注入service，编写struts.xml，编写表但jsp页面。

web.xml配置：确定配置文件contextConfigLocation、配置监听器、contextLocationListener、配置前端控制器StrutsPrepareAndExecuteFitler

①web层UserAction

package com.gyf.itedu.web.action;
    import org.springframework.beans.factory.annotation.Autowired;
    import com.gyf.itedu.model.User;
    import com.gyf.itedu.service.IUserService;
    import com.opensymphony.xwork2.ActionSupport;
    import com.opensymphony.xwork2.ModelDriven;
    public class UserAction extends ActionSupport implements ModelDriven<User>{
    	private User user= new User();
    	//action中使用Service注意：①不需要在spring的配置文件中注入service。②会根据spring中的id名字注入到当前属性中
    	private IUserService userService;
    
    	public void setUserService(IUserService userService) {
    		this.userService = userService;
    	}
    
    	public String register()  {				
    		//获取请求参数
    		System.out.println(user);
    		//调用service
    		userService.register(user);
    		//返回结果
    		return SUCCESS;
    	}
    	@Override
    	public User getModel() {		
    		return user;
    	}
    }

②编写struts.xml（在/src目录下）

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC
    	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
    	"http://struts.apache.org/dtds/struts-2.3.dtd">
    <struts>
        <constant name="struts.devMode" value="true" />
        <package name="default" namespace="/" extends="struts-default">
         <action name="user_*" class="com.gyf.itedu.web.action.UserAction" method="{1}">
            <result name="success">/success.jsp</result>
            </action>
        </package>   
    </struts>

③编写success.jsp页面（在/WebContent目录下）

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    
    <html>
    <head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
      注册成功！
    </body>
    </html>

编写index.jsp页面（在/WebContent目录下）

⑤编写web.xml（在/WebContent/WEB-INF目录下）

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
                 xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd "
    id="WebApp_ID" version="3.1">
      <welcome-file-list>  
        <welcome-file>index.jsp</welcome-file>  
      </welcome-file-list>
     
      
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
      </context-param>
       <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
       </listener> 
    
      <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
      </filter>
        
      <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>
      
    </web-app>

启动服务器后，在浏览器输入[http://localhost:8080/web-ssh/user\_register?username=af&password=128&age=21][http_localhost_8080_web-ssh_user_register_username_af_password_128_age_21]结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 7][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 8][]

注意：数据库表中出现的是22而不是7，是因为我已经把7到21的记录删除了，定义的是自增型，id是主键，所以是22。

[https_www.cnblogs.com_ZXF6_p_11066691.html]: https://www.cnblogs.com/ZXF6/p/11066691.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20190801174221186.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 1]: /images/20210923/31c23278db38461daca99d784dbfa382.png
[https_pan.baidu.com_s_1Er_HeDA9b5S0fYfKjPhDsw]: https://pan.baidu.com/s/1Er_HeDA9b5S0fYfKjPhDsw
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 2]: /images/20210923/3d5279e82eeb4c65b64b3c03fe233ff6.png
[https_pan.baidu.com_s_1hgT_HhbVcAtuAMOVOC665g]: https://pan.baidu.com/s/1hgT_HhbVcAtuAMOVOC665g
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20190802101201267.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 4]: /images/20210923/eb9236fdb2c94a6399a52649519edd33.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 5]: https://img-blog.csdnimg.cn/20190802101419978.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc=,size_16,color_FFFFFF,t_70
[20190802101523601.png]: /images/20210923/2535ea158a5a4b99b1f8ed0bfe2922fb.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hxeTE3MTkyMzkzMzc_size_16_color_FFFFFF_t_70 6]: /images/20210923/aa4b09381ff34f44b080cb87422c730f.png
[http_localhost_8080_web-ssh_user_register_username_af_password_128_age_21]: http://localhost:8080/web-ssh/user_register?username=af&password=128&age=21
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