搭建springWeb保姆级教程

àì夳堔傛蜴生んèń 2023-10-02 23:36 24阅读 0赞

经过我们对mybatis和spring框架的学习，我们即将要用框架进行前后端数据交互，已经脱离了那种用servlet的方式进行数据传输，今天让我们来搭建最基本的springweb框架！！！

#### 1.创建一个web项目 ####

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2. 选择一个web项目

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#### 2.将spring集成mybatis ####

1.导入mybatis Jar包

<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.1</version>
    </dependency>

2.配置 sqlSessionFactory(在spring-mybatis.xml中)

#### 3.将比较常用的包导入到项目中 ####

<dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>8.0.16</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.4.2</version>
            </dependency>
            
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>provided</scope>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>1.1.10</version>
            </dependency>
    
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>5.2.2.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>5.2.2.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>8.0.16</version>
            </dependency>
             
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>5.2.2.RELEASE</version>
            </dependency>

#### 4.创建响应的包和类 ####

#### 5.配置对应的mybatis-config.xml文件 ####

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE configuration
            PUBLIC "-//mybatis.org//DTD Config
    3.0//EN"
            "http://mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
    
        <settings>
            <setting name="logImpl" value="STDOUT_LOGGING"/>
        </settings>
        
        <typeAliases>
            <package name="com.ffyc.ssm.model"/>
        </typeAliases>
    
    
    </configuration>

#### 6.配置spring.xml,开启全局扫描 ####

#### 7.配置数据库db.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:context="http://www.springframework.org/schema/context"
           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/tx
            http://www.springframework.org/schema/tx/spring-tx.xsd">
    
        <context:property-placeholder location="classpath:config.properties"></context:property-placeholder>
    
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
    
            <property name="driverClassName" value="${driver}"></property>
            <property name="url" value="${url}"></property>
            <property name="username" value="${uname}"></property>
            <property name="password" value="${pwd}"></property>
            <property name="initialSize" value="5"></property>
            <property name="maxActive" value="10"></property>
    
    </bean>
    
    
        
        <bean id="transactionManager"
              class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"></property>
        </bean>
    
        
        <tx:annotation-driven transaction-manager="transactionManager"/>
    </beans>

config.properties：

driver=com.mysql.cj.jdbc.Driver
    url=jdbc:mysql://127.0.0.1:3306/数据库名?serverTimezone=Asia/Shanghai
    uname=账号 //不能写成username，可能会调用系统上的username，结果报错
    pwd=密码

#### 8.集成mybatis ####

将数据库db.xml添加到spring-mybatis.xml中，spring-mybatis.xml添加到spring.xml进行全局扫描

<?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:aop="http://www.springframework.org/schema/aop"
           xmlns:context="http://www.springframework.org/schema/context"
           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">
        
        <import resource="classpath:db.xml"></import>
    
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
       
            <property name="dataSource" ref="dataSource"></property>
      
            <property name="configLocation" value="classpath:mybatis-config.xml"></property>
       
            <property name="mapperLocations" value="classpath:mappers/*Mappers.xml">
            </property>
        </bean>
    
        <bean id="mapperFactory"
              class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.ffyc.ssm.dao"></property>
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">
            </property>
        </bean>
    
    </beans>

#### 9.导入 SpringWeb Jar包 ####

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>5.2.2.RELEASE</version>
    </dependency>

#### 10.在 web.xml 文件中配置 DispatcherServlet ####

<servlet>
            <servlet-name>application</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:spring.xml</param-value>
            </init-param>
    
            <load-on-startup>0</load-on-startup>
        </servlet>
        
        <servlet-mapping>
            <servlet-name>application</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>

#### 11.开启 SpringMVC 注解 ####

新建一个xml文件，在spring.xml统一进行解析

<mvc:annotation-driven></mvc:annotation-driven>

#### 12.配置过滤器 ####

<filter>
    <filter-name>characterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF-8</param-value>
    </init-param>
    </filter>
    <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>

#### 13.添加 gson jar 包（json数据） ####

<dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.6</version>
    </dependency>

#### 14.配置关于jackson Jar包 ####

<dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>2.13.3</version>
            </dependency>

#### 15.添加过滤器 Jar包 ####

<dependency>
    <groupId>com.thetransactioncompany</groupId>
    <artifactId>cors-filter</artifactId>
    <version>2.5</version>
    </dependency>

#### 16.在 web.xml 中配置过滤器 ####

<filter>
    <filter-name>CORS</filter-name>
    <filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
    </filter>
    <filter-mapping>
    <filter-name>CORS</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>

#### 17.注册拦截器 ####

<mvc:interceptors>
    <mvc:interceptor>
    <mvc:mapping path="/**"/>
    <mvc:exclude-mapping path="/statics/**"/>
    <mvc:exclude-mapping path="/loginCtl/checklogin"/>
    <bean id="demo" class="com.ff.springMVC.util.DemoInterceptor"></bean>
    </mvc:interceptor>
    </mvc:interceptors>

#### 18.添加拦截器所需要的Jar包 ####

<dependency>
    <groupId>commons-fileupload</groupId>
    <artifactId>commons-fileupload</artifactId>
    <version>1.3.3</version>
    </dependency>

#### 19.添加拦截器文件解析器 ####

文件解析器
    <bean id="multipartResolver"
    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <property name="defaultEncoding" value="utf-8"></property>
    <property name="maxUploadSize" value="10485760"></property>
    </bean>

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[8817c9e1b6204858b2565445f954a3e5.png]: https://img-blog.csdnimg.cn/8817c9e1b6204858b2565445f954a3e5.png
[bdf9d7a1f78d482293a768930171842f.png]: https://img-blog.csdnimg.cn/bdf9d7a1f78d482293a768930171842f.png
[fcd32b0293214398a9bbf0094e35d32b.png]: https://img-blog.csdnimg.cn/fcd32b0293214398a9bbf0094e35d32b.png