ssh整合思想 Spring分模块开发 crud参数传递 解决HTTP Status 500 - Write operations are not allowed in read-only mode

Posted 2020-10-20 Advancing Swift

在Spring核心配置文件中没有增加事务方法，导致以上问题

Action类UserAction

package com.swift.action;

import com.opensymphony.xwork2.ActionSupport;
import com.swift.service.UserService;

public class UserAction extends ActionSupport {
    private UserService userService;
    public void setUserService(UserService userService) {
        this.userService = userService;
    }
    @Override
    public String execute() throws Exception {
        System.out.println("action..................");
        userService.add("fly","War of Mercenaries");
        userService.add("big-dog","War of Mercenaries");
        userService.add("ram","War of Mercenaries");
        userService.add("rabbit","War of Mercenaries");
        userService.add("hama","War of Mercenaries");
        userService.add("shiguan","War of Mercenaries");
        userService.update("ram","War of Mercenaries","公羊","佣兵的战争");
        userService.delete("rabbit","War of Mercenaries");
        userService.getOne(2);
        userService.findAll();
        userService.findYouWant("ram","War of Mercenaries");
        return NONE;
    }

}

UserService类

package com.swift.service;

import org.springframework.transaction.annotation.Transactional;

import com.swift.dao.UserDao;
@Transactional
public class UserService {

    private UserDao userDao;
    public void setUserDao(UserDao userDao) {
        this.userDao = userDao;
    }
    public void add(String userName,String address) {
        System.out.println("UserService.................add");
        userDao.add(userName,address);
    }
    public void update(String userName,String address,String modifyName,String modifyAddress) {
        System.out.println("UserService.................update");
        userDao.update(userName,address,modifyName,modifyAddress);
    }
    public void delete(String userName,String address) {
        System.out.println("UserService.................delete");
        userDao.delete(userName,address);
    }
    public void getOne(int number) {
        System.out.println("UserService.................get the number of");
        userDao.getOne(number);
    }
    public void findAll() {
        System.out.println("UserService.................find all");
        userDao.findAll();
    }
    public void findYouWant(String userName,String address) {
        System.out.println("UserService.................find you want");
        userDao.findYouWant(userName,address);
    }
    
}

UserDao接口

package com.swift.dao;

public interface UserDao {
    public void add(String userName,String address);
    public void update(String userName,String address,String modifyName,String modifyAddress);
    public void delete(String userName,String address);
    public void getOne(int number);
    public void findAll();
    public void findYouWant(String userName,String address);
}

UserDaoImplements类

package com.swift.dao;

import java.util.List;

import org.springframework.orm.hibernate5.HibernateTemplate;

import com.swift.entity.User;

public class UserDaoImplements implements UserDao {
    private HibernateTemplate hibernateTemplate;
    private User user;

    public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
        this.hibernateTemplate = hibernateTemplate;
    }

    public void setUser(User user) {
        this.user = user;
    }

    @Override
    public void add(String userName, String address) {
        // 增加
        user.setUsername(userName);
        user.setAddress(address);
        hibernateTemplate.save(user);
    }

    @Override
    public void update(String userName, String address, String modifyName, String modifyAddress) {
        List<User> list = (List<User>) hibernateTemplate.find("from User where userName=? and address=?", userName,
                address);
        if (list != null) {
            for (User user : list) {
                System.out.println(user.getUsername() + " :: " + user.getAddress());
                user.setUsername(modifyName);
                user.setAddress(modifyAddress);
                hibernateTemplate.update(user);
            }
        } else {
            System.out.println("您要更新的记录不存在！！！！！");
        }
    }

    @Override
    public void delete(String userName, String address) {
        List<User> list = (List<User>) hibernateTemplate.find("from User where userName=? and address=?", userName,
                address);
        if (list != null) {
            for (User user : list) {
                System.out.println(user.getUsername() + " :: " + user.getAddress());
                hibernateTemplate.delete(user);
            }
        } else {
            System.out.println("您要删除的记录不存在！！！！！");
        }
    }

    @Override
    public void getOne(int number) {
        User user = hibernateTemplate.get(User.class, number);
        System.out.println(user.getUsername() + " :: " + user.getAddress());
    }

    @Override
    public void findAll() {
        List<User> list = (List<User>) hibernateTemplate.find("from User");
        for (User user : list) {
            System.out.println(user.getUsername() + " :: " + user.getAddress());
        }
    }

    @Override
    public void findYouWant(String userName, String address) {
        List<User> list = (List<User>) hibernateTemplate.find("from User where userName=? and address=?", userName,
                address);
        System.out.println(list.toString());
        for (User user : list) {
            System.out.println(user.getUsername() + " :: " + user.getAddress());
        }
    }

}

User实体类：

package com.swift.entity;

public class User {
    
    private Integer uid;
    private String username;
    private String address;
    public Integer getUid() {
        return uid;
    }
    public void setUid(Integer uid) {
        this.uid = uid;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    public User(String username, String address) {
        this.username = username;
        this.address = address;
    }
    public User(Integer uid, String username, String address) {
        this.uid = uid;
        this.username = username;
        this.address = address;
    }
    public User() {
        super();
        // TODO Auto-generated constructor stub
    }

    
}

web.xml 自动启动监听和过滤器

<?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>2018-01-03_Spring_Hibernate</display-name>
  
  <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:bean.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>
  
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

Spring核心配置文件bean.xml 通过引入各个分模块

<?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 http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- c3p0连接池得到dataSource -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/sw_database"></property>
        <property name="user" value="root"></property>
        <property name="password" value="root"></property>
    </bean>
    
    <!-- 创建hibernate事务管理器 -->
    <bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <!-- 启动Hibernate事务管理器 -->
    <tx:annotation-driven transaction-manager="hibernateTransactionManager"></tx:annotation-driven>
    
    <!-- 引入分模块 -->
    <import resource="classpath:User.xml"/>
    
</beans>

分模块User.xml 只负责Action部分

<?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 http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <bean id="userAction" class="com.swift.action.UserAction" scope="prototype">
    <property name="userService" ref="userService"></property>
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
    <!-- Hibernate核心配置文件没有连接数据库，所以需要注入 -->
    <property name="dataSource" ref="dataSource"></property>
    <!-- Hibernate核心配置文件的位置 -->
    <property name="configLocations" value="classpath:hibernate.cfg.xml"></property>
    </bean>
    
    <bean id="userService" class="com.swift.service.UserService">
    <property name="userDao" ref="userDaoImplements"></property>
    </bean>
    
    <bean id="userDaoImplements" class="com.swift.dao.UserDaoImplements">
    <property name="hibernateTemplate" ref="hibernateTemplate"></property>
    <property name="user" ref="user"></property>
    </bean>
    
    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate5.HibernateTemplate">
       <!-- 前一个sessionFactory是HibernateTemplate类内部的 -->
    <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    
    <bean id="user" class="com.swift.entity.User"></bean>
    
</beans>

Hibernate核心配置文件hibernate.cfg.xml

<?xml version="1.0" encoding=\'UTF-8\'?>
<!DOCTYPE hibernate-configuration PUBLIC   
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"   
          "http://hibernate.sourceforge.net/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://localhost:3306/sw_database</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">root</property> -->
        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property> <!-- 方言的数字很重要一定找到该项目名的连接类 -->
        
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.format_sql">true</property><!-- 别处复制过来的代码要重新在Eclipse中一点点输入否则会出错 -->
        
        <!-- create: 先删表，再建表。 create-drop: 启动时建表，退出前删表。 update: 如果表结构不一致，就创建或更新。 
            validate: 启动时验证表结构，如果不致就抛异常。 -->
        <property name="hibernate.hbm2ddl.auto">update</property>

        <!--指定映射文件，可映射多个映射文件 -->
        <mapping resource="User.hbm.xml"></mapping>
    </session-factory>

</hibernate-configuration>

Hibernate映射文件

<?xml version="1.0" encoding=\'UTF-8\'?>     
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
    <!-- 实体类映射文件 -->
<hibernate-mapping>

    <class name="com.swift.entity.User" table="t_user">
        <!-- 主键 -->
        <id name="uid">
            <generator class="native"></generator>
        </id>
        <!-- 其他属性 -->
        <property name="username"/>
        <property name="address"/>
    </class>
    
</hibernate-mapping>

struts2的Action配置文件

<?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>
    <package name="default" extends="struts-default" namespace="/">
    
    <!-- action的class不要写全名会创建两个对象，而写Spring配置文件中id的内容，只建一个对象
                  前提有struts2-spring-plugin-2.3.4.1.jar -->
        
        <action name="userAction" class="userAction">
        </action>
    </package>
</struts>

浏览器操作

控制台显示

 

 

数据库显示