Spring+mybatis测试项目总结

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Spring+mybatis测试项目总结

2024-07-14 04:22:15 223人阅读

1.项目目的
a.通过Spring+Mybatis实现通过web访问达成mySql的操作
b.理解Spring+Mybatis的配置
c.理解maven对项目的管理
2.配置文件
a.采用maven约定结构，src/main/java、src/main/resources、src/main/test

b.基本springMVC+Mybatis需要用到的jar

spring-web、spring-webmvc、spring-core、spring-beans、spring-context、spring-context-support
spring-jdbc、spring-tx、spring-aop、spring-asm、spring-expression、spring-test
mybatis-3.1、mybatis-spring-1.1
commons-logging-1.1、commons-pool1.5.4
xalan-2.6.0（首先它是一个Java的开源类库, 它是一个XSLT的处理包,用于将XML文档转为HTML文档,文本文件TXT,或其他格式的XML文档,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter引用该jar）
mysql-connector-java-5.1.27

c.从web.xml开始,引入springMVC配置文件（WEB-INF/mvc-config.xml、classpath:spring/application-config.xml）
d.从application-config.xml开始，引入Mybatis配置文件（classpath:mybatis-config.xml、mysql.properties）
e.从mybatis-config.xml开始，引入Mybatis的mapper.xml配置文件
3.项目实现
a.定义springMVC第一件事情需要声明DispatchServlet，然后对访问路径进行截取
b.定义Controller，需要充分利用注解，分为两类，一个是通过注解自动装配，一个是通过注解进行访问控制标志
c.定义Mybaits的数据库操作类接口+mapper.xml对应结构，通过spring和mybatis结合插件实现桥接
4.项目部署
a.maven正确配置打包插件
b.可先通过jetty:run进行运行调试
5.遇到问题处理
a.首先增加maven中jetty插件时遇到盲区，（resources资源、maven-compiler-plugin编译插件、maven-war-plugin插件、jetty-maven-plugin插件、exec-maven-plugin插件、maven-surefire-plugin测试是否忽略失败插件）
b.spring配置时候需要注意ref和value的区别，引用dataSource的时候报错了，查了半天（spring配置需要熟练）
c.springMVC对通过注解的自动装配需要进行配置的，指向顶级包名(理解spring3以后的自动装配的配置，Bean的注解)
d.打包的时候，如果需要把java目录中的xml文件打包需要定义resources，既然定义了resources就要多定义点，否则真实resources目录下的xml不会被打包出去
e.jetty不能正确启动，通常是项目部署存在问题，用maven进行项目部署通常是报依赖少了，或者依赖的包下载过程出现异常导致。

附件：

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>org.springframework.samples.service.service</groupId>
 <artifactId>spyu-mybatis</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <packaging>war</packaging>
 <properties>
  <!-- Generic properties -->
  <java.version>1.6</java.version>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  <!-- Web -->
  <jsp.version>2.2</jsp.version>
  <jstl.version>1.2</jstl.version>
  <servlet.version>2.5</servlet.version>
  <!-- Spring -->
  <spring-framework.version>3.1.1.RELEASE</spring-framework.version>
  <!-- Logging -->
  <logback.version>1.0.13</logback.version>
  <slf4j.version>1.7.5</slf4j.version>
  <!-- Test -->
  <junit.version>4.11</junit.version>
  <jettyVersion>8.1.8.v20121106</jettyVersion>
 </properties>
 <dependencies>
  <!-- Spring MVC -->
  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-webmvc</artifactId>
   <version>${spring-framework.version}</version>
  </dependency>
  <!-- Spring and Transactions -->
  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-tx</artifactId>
   <version>${spring-framework.version}</version>
  </dependency>
  <!-- Spring jdbc -->
  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-jdbc</artifactId>
   <version>${spring-framework.version}</version>
  </dependency>
  <!-- Other Web dependencies -->
  <dependency>
   <groupId>javax.servlet</groupId>
   <artifactId>jstl</artifactId>
   <version>${jstl.version}</version>
  </dependency>
  <dependency>
   <groupId>javax.servlet</groupId>
   <artifactId>servlet-api</artifactId>
   <version>${servlet.version}</version>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>javax.servlet.jsp</groupId>
   <artifactId>jsp-api</artifactId>
   <version>${jsp.version}</version>
   <scope>provided</scope>
  </dependency>
 
  <!-- Logging with SLF4J & LogBack -->
  <dependency>
   <groupId>org.slf4j</groupId>
   <artifactId>slf4j-api</artifactId>
   <version>${slf4j.version}</version>
   <scope>compile</scope>
  </dependency>
  <dependency>
   <groupId>ch.qos.logback</groupId>
   <artifactId>logback-classic</artifactId>
   <version>${logback.version}</version>
   <scope>runtime</scope>
  </dependency>
  <dependency>
   <groupId>org.mybatis</groupId>
   <artifactId>mybatis-spring</artifactId>
   <version>1.0.1</version>
   <scope>runtime</scope>
  </dependency>
  <dependency>
   <groupId>org.mybatis</groupId>
   <artifactId>mybatis</artifactId>
   <version>3.0.5</version>
   <scope>runtime</scope>
  </dependency>
  <dependency>
   <groupId>commons-pool</groupId>
   <artifactId>commons-pool</artifactId>
   <version>1.5.4</version>
   <scope>runtime</scope>
  </dependency>
  <dependency>
   <groupId>mysql</groupId>
   <artifactId>mysql-connector-java</artifactId>
   <version>5.1.27</version>
  </dependency>
  <dependency>
   <groupId>xalan</groupId>
   <artifactId>xalan</artifactId>
   <version>2.6.0</version>
  </dependency>
  <!-- Test Artifacts -->
  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-test</artifactId>
   <version>${spring-framework.version}</version>
   <scope>test</scope>
  </dependency>
  <dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <version>${junit.version}</version>
   <scope>test</scope>
  </dependency>
 </dependencies>
 <build>
  <resources>
   <resource>
    <directory>src/main/java</directory>
    <excludes>
     <exclude>**/*.java</exclude>
     <exclude>**/.svn/*</exclude>
    </excludes>
   </resource>
   <resource>
    <directory>src/main/resources</directory>
    <excludes>
     <exclude>**/*.java</exclude>
     <exclude>**/.svn/*</exclude>
    </excludes>
   </resource>
  </resources>
  <plugins>
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <configuration>
     <source>${java.version}</source>
     <target>${java.version}</target>
    </configuration>
   </plugin>
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <version>2.2</version>
    <configuration>
     <warName>spyumybatis</warName>
    </configuration>
   </plugin>
   <!--jetty plugin -->
   <plugin>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>jetty-maven-plugin</artifactId>
    <version>${jettyVersion}</version>
    <configuration>
     <scanIntervalSeconds>10</scanIntervalSeconds>
     <webApp>
      <contextPath>/spyumybatis</contextPath>
     </webApp>
     <connectors>
      <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
       <port>9093</port>
       <maxIdleTime>60000</maxIdleTime>
      </connector>
     </connectors>
    </configuration>
   </plugin>
   <plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.1</version>
    <executions>
     <execution>
      <goals>
       <goal>java</goal>
      </goals>
     </execution>
    </executions>
    <configuration>
     <mainClass></mainClass>
    </configuration>
   </plugin>
   <!-- 测试出错不影响项目的编译 -->
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <configuration>
     <testFailureIgnore>true</testFailureIgnore>
    </configuration>
   </plugin>
  </plugins>
 </build>
</project>

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns="http://java.sun.com/xml/ns/javaee"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
 id="WebApp_ID" version="2.5">
 <display-name>spyu-mybatis</display-name>
 <!-- DispatcherServlet 默认加载的bean文件是/WEB-INF/(servlet-name)-servlet.xml 可以通过配置contextConfigLocation来改变加载的文件 -->
 <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:spring/application-config.xml</param-value>
 </context-param>
 <listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 </listener>

 <!-- - Servlet that dispatches request to registered handlers (Controller 
  implementations). -->
 <servlet>
  <servlet-name>dispatcherServlet</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>/WEB-INF/mvc-config.xml</param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
 </servlet>
 <servlet-mapping>
  <servlet-name>dispatcherServlet</servlet-name>
  <url-pattern>/</url-pattern>
 </servlet-mapping>
</web-app>

mvc-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:context="http://www.springframework.org/schema/context"
     xmlns:mvc="http://www.springframework.org/schema/mvc"
     xsi:schemaLocation="http://www.springframework.org/schema/beans 
         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context-3.0.xsd
         http://www.springframework.org/schema/mvc 
         http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
 
 <mvc:annotation-driven/>
 <!-- 对org.simple下所有包下的类的注解进行扫描,并自动创建bean实例和装配bean -->
 <context:component-scan base-package="spyu" />
 <!-- 配置视图 -->
 <bean id="viewResolver"
  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  <property name="prefix" value=http://www.mamicode.com/"/WEB-INF/" />> 
 
 
 application-config.xml 
 
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:context="http://www.springframework.org/schema/context"
    default-autowire="byName"
    xmlns="http://www.springframework.org/schema/beans"
    xsi:schemaLocation="       
      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd       
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd       
      http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd       
      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd       
      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd" >
    <context:annotation-config /> 
 
 <!-- 载入MySql配置 文件 -->
 <context:property-placeholder location="classpath:Mysql.properties" />
  <!-- 配置DataSource数据源 -->
  <bean id="DataSource"
   class="org.springframework.jdbc.datasource.DriverManagerDataSource">
   <property name="driverClassName" value=http://www.mamicode.com/"${jdbc.driverClassName}" />> 
 
 
 mybatis-config.xml 
 
<?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>

     <typeAliases>

      <typeAlias alias="User" type="spyu.mode.User" />

     </typeAliases>

     

     <mappers>

      <mapper resource="spyu/dao/mapper/UserMapper.xml"/>

     </mappers>

</configuration> 
 
 
 mysql.properties 
 
<?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>

     <typeAliases>

      <typeAlias alias="User" type="spyu.mode.User" />

     </typeAliases>

     

     <mappers>

      <mapper resource="spyu/dao/mapper/UserMapper.xml"/>

     </mappers>

</configuration> 
 
 
 mapper.xml样本 
 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="spyu.dao.IUser">
 <select id="insertUser" parameterType="User">
  insert into user(name) values (#{name})
 </select>
</mapper>

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Spring+mybatis测试项目总结

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