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IntelliJ SSH项目集成

IntelliJ SSH项目集成

作者: MinicupSimon | 来源:发表于2018-07-19 18:45 被阅读0次

    https://wenku.baidu.com/view/d0dcfc017f1922791788e8a5.html

    一, 通过IDE创建项目, 并创建相应的包结构

    image.png image.png image.png image.png

    查看web.xml中的StrutsPrepareAndExecuteFilter包名是否正确.不正确的话去掉.ng包.

    打开Project Structure and Fix the Problems


    image.png image.png

    二 整合Hibernate到Spring中

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    右键数据库, 创建表


    image.png image.png image.png image.png

    如果遇到如下问题:


    image.png

    解决方法:


    image.png image.png

    手动创建一个sessionFactory

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
        <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        </bean>
    </beans>
    

    此时选项中便有了可选项


    image.png

    自动生成如下内容


    image.png

    导入需要的jdbc驱动包后修改配置如下:

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
        <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
            <property name="annotatedClasses">
                <list>
                    <value>com.minicuper.ssh.entity.UserEntity</value>
                </list>
            </property>
            <property name="hibernateProperties">
                <props>
                    <prop key="hibernate.connection.url">jdbc:mysql://localhost:3306/ssh</prop>
                    <prop key="hibernate.connection.driver_class">com.mysql.jdbc.Driver</prop>
                    <prop key="connection.username">root</prop>
                    <prop key="connection.password">1234</prop>
                    <prop key="current_session_context_class">thread</prop>
                    <prop key="format_sql">true</prop>
                    <prop key="show_sql">true</prop>
                    <prop key="dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                    <prop key="hbm2ddl.auto">create</prop>
                </props>
            </property>
        </bean>
    </beans>
    

    生成的实体类中有一些错误


    image.png

    解决方法:为sessionFactory指定对应的DataSources即可


    image.png image.png

    三 整合Struts到Spring中.

    配置ContextLoaderListener, 使WebApp启动时便初始化Spring配置文件
    ContextLoaderListener类在spring-web.jar包中.需要手动引入jar包.

    web.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
             version="4.0">
        <filter>
            <filter-name>struts2</filter-name>
            <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
        </filter>
        <filter-mapping>
            <filter-name>struts2</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        <!--Spring整合-->
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-config.xml</param-value>
        </context-param>
    </web-app>
    

    创建的类,及修改的类 :


    image.png

    UserAction.java

    package com.minicuper.ssh2.action;
    import com.minicuper.ssh2.entity.User;
    import com.minicuper.ssh2.service.UserService;
    import com.opensymphony.xwork2.ActionSupport;
    import com.opensymphony.xwork2.ModelDriven;
    
    public class UserAction extends ActionSupport implements ModelDriven<User> {
        public String result = "";
    
        private User user = new User();
        @Override
        public User getModel() {
            return user;
        }
    
        private UserService userService;
    
        public void setUserService(UserService userService) {
            this.userService = userService;
        }
    
        public String regist(){
            System.out.println("UserAction regist()");
            if(userService.regist(user)){
                result = "注册成功";
                return SUCCESS;
            }else {
                result = "注册失败";
                return ERROR;
            }
        }
    }
    

    User.java

    package com.minicuper.ssh2.entity;
    
    import javax.persistence.Basic;
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import java.util.Objects;
    
    @Entity
    public class User {
        private int uid;
        private String name;
        private String pwd;
    
        @Id
        @Column(name = "uid")
        public int getUid() {
            return uid;
        }
    
        public void setUid(int uid) {
            this.uid = uid;
        }
    
        @Basic
        @Column(name = "name")
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        @Basic
        @Column(name = "pwd")
        public String getPwd() {
            return pwd;
        }
    
        public void setPwd(String pwd) {
            this.pwd = pwd;
        }
    
        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            User user = (User) o;
            return uid == user.uid &&
                    Objects.equals(name, user.name) &&
                    Objects.equals(pwd, user.pwd);
        }
        @Override
        public int hashCode() {
            return Objects.hash(uid, name, pwd);
        }
    }
    

    UserService.java

    package com.minicuper.ssh2.service;
    
    import com.minicuper.ssh2.dao.UserDao;
    import com.minicuper.ssh2.entity.User;
    
    public class UserService {
        private UserDao userDao;
    
        public void setUserDao(UserDao userDao) {
            this.userDao = userDao;
        }
    
        public boolean regist(User user){
            System.out.println("UserService regist()");
            return userDao.regist(user);
        }
    }
    

    UserDao.java

    package com.minicuper.ssh2.dao;
    
    import com.minicuper.ssh2.entity.User;
    import org.hibernate.Session;
    import org.hibernate.SessionFactory;
    import org.hibernate.Transaction;
    import org.springframework.transaction.annotation.Transactional;
    
    public class UserDao {
        private SessionFactory sessionFactory;
    
        public void setSessionFactory(SessionFactory sessionFactory) {
            this.sessionFactory = sessionFactory;
        }
    
        public boolean regist(User user){
            System.out.println("UserDao regist()");
            Session currentSession = sessionFactory.openSession();
            Transaction transaction = currentSession.beginTransaction();
            try {
                currentSession.save(user);
                transaction.commit();
                return true;
            }catch (Exception e){
                e.printStackTrace();
                transaction.rollback();
            }finally {
                currentSession.close();
                sessionFactory.close();
            }
            return false;
        }
    }
    

    spring-config.xml

    <?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:tx="http://www.springframework.org/schema/tx"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    
        <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
    
            <property name="annotatedClasses">
                <list>
                    <value>com.minicuper.ssh2.entity.User</value>
                </list>
            </property>
            <property name="hibernateProperties">
                <props>
                    <prop key="hibernate.connection.url">jdbc:mysql://localhost:3306/ssh?serverTimezone=UTC</prop>
                    <prop key="hibernate.connection.driver_class">com.mysql.cj.jdbc.Driver</prop>
                    <prop key="hibernate.connection.password">1234</prop>
                    <prop key="hibernate.connection.username">root</prop>
                    <prop key="hbm2ddl.auto">create</prop>
                    <prop key="show_sql">true</prop>
                    <prop key="format_sql">true</prop>
                    <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                    <!--<prop key="current_session_context_class">thread</prop>-->
                </props>
            </property>
        </bean>
    
    
        <bean class="com.minicuper.ssh2.action.UserAction" id="userAction" scope="prototype">
            <property name="userService" ref="userService"/>
        </bean>
    
        <bean class="com.minicuper.ssh2.service.UserService" id="userService">
            <property name="userDao" ref="userDao"></property>
        </bean>
    
        <bean class="com.minicuper.ssh2.dao.UserDao" id="userDao">
            <property name="sessionFactory" ref="sessionFactory"/>
        </bean>
    </beans>
    

    struts.xml

    <?xml version="1.0" encoding="UTF-8"?>
    
    <!DOCTYPE struts PUBLIC
            "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
            "http://struts.apache.org/dtds/struts-2.5.dtd">
    
    <struts>
        <package name="default" namespace="/" extends="struts-default">
            <global-allowed-methods>regex:.*</global-allowed-methods>
            <action name="*_*" class="{1}Action" method="{2}">
                <result name="success">result.jsp</result>
                <result name="error">result.jsp</result>
            </action>
        </package>
    </struts>
    

    web.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
             version="4.0">
        <filter>
            <filter-name>struts2</filter-name>
            <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
        </filter>
        <filter-mapping>
            <filter-name>struts2</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
    
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-config.xml</param-value>
        </context-param>
    </web-app>
    

    index.jsp

    <%@ taglib prefix="s" uri="/struts-tags" %>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
      <head>
        <title>$Title$</title>
      </head>
      <body>
      <s:form namespace="/" theme="simple" method="POST" action="user_regist">
        姓名:<input name="name" type="text"><br>
        密码:<input name="pwd" type="text"><br>
        <input type="submit" value="提交 ">
      </s:form>
      </body>
    </html>
    

    result.jsp

    <%@ taglib prefix="s" uri="/struts-tags" %>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>Title</title>
    </head>
    <body>
    Result:<s:property value="result"/>
    </body>
    </html>
    

    部署到Tomcat服务器:


    image.png image.png image.png image.png image.png

    常见问题:

    • sessionFactory.getCurrentSession()
      异常: org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
      配置不起作用:<prop key="current_session_context_class">thread</prop>
      解决方法: 配置HibernateTransactionManager
      在Spring配置文件中添加:
        <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
            <property name="sessionFactory" ref="sessionFactory"/>
        </bean>
    
        <tx:annotation-driven/>
    

    后在Service类上添加注解:@Transactional

    • 配置事务时
      出现异常:org.hibernate.service.UnknownUnwrapTypeException: Cannot unwrap to requested type [javax.sql.DataSource]
      解决方法:
      1.导入c3p0相关的包.
      2.修改spring.config.xml
      3.Dao类中原来的事务操作删掉即可
        添加
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="com.mysql.cj.jdbc.Driver"/>
            <property name="user" value="root"/>
            <property name="password" value="1234"/>
            <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssh?serverTimezone=UTC"/>
        </bean>
        修改
        <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
            <property name="dataSource" ref="dataSource"/>
            <property name="annotatedClasses">
                <list>
                    <value>com.minicuper.practice.entity.User</value>
                </list>
            </property>
            <property name="hibernateProperties">
                <props>
                    <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                    <prop key="show_sql">true</prop>
                    <prop key="format_sql">true</prop>
                    <prop key="hbm2ddl.auto">create</prop>
                </props>
            </property>
        </bean>
        添加
        <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
            <property name="sessionFactory" ref="sessionFactory"/>
        </bean>
        添加
        <tx:annotation-driven/>
    
    • 配置c3p0时: 出现 ClassNotFoundException: com.mchange.v2.ser.Indirector
      解决方法:添加 mchange-commons-java.jar包

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