maven project整合springboot mybatis druid
- springboot 快速开发springmvc
- mybatis 轻量级持久层
- druid 阿里数据库连接池
- 数据库当前配置为postgre数据库，可修改依赖driver及datasource配置更换数据库
pom.xml依赖相关内容
因为只做了框架demo，依赖包很少
spring-boot-starter-web -> springmvc和tomcat
spring-boot-starter-test -> 单元测试
mybatis-spring-boot-starter -> mybatis
druid -> druid
postgresql -> 数据库驱动
<!--配置属性，版本号 -->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.7</java.version>
<druid.version>1.1.5</druid.version>
<spring-boot.version>1.5.6.RELEASE</spring-boot.version>
</properties>
<!-- spring boot依赖 非parent调用 -->
<dependencyManagement>
<dependencies>
<dependency>
<!-- Import dependency management from Spring Boot,not include plugin
management as the parent import style -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- spring boot -->
<!-- https://docs.spring.io/spring-boot/docs/1.2.3.RELEASE/reference/html/using-boot-build-systems.html#using-boot-starter-poms -->
<!-- spring boot web 包含spring mvc和tomcat-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- springboot 单元测试 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<!-- springboot的mybaties -->
<!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<!-- druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- 数据库驱动 -->
<!-- postgre -->
<!-- https://mvnrepository.com/artifact/postgresql/postgresql -->
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901-1.jdbc4</version>
</dependency>
</dependencies>
整合步骤
- 引入相关依赖，pom内容如上
- springboot主class声明，也就是springboot的入口application main
@ServletComponentScan 自动扫描servlet的标签，否则标签不起作用，因为druid的内部管理页面是通过servlet声明的，所以需要该标签。
修改为继承SpringBootServletInitializer并重写configure方法，该方法以便打包war时，不通过main进入而是正常web项目使用。
@SpringBootApplication
@ServletComponentScan
public class App extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(this.getClass());
}
public static void main( String[] args )
{
SpringApplication.run(App.class, args);
}
}
- druid初始化相关配置类，配置参数写于application.properties中
为了使dataSource使用druid的，需要使用@Primary标签，该标签在注入bean时，若找到多个相同bean，则优先注入标签声明的。
druid github项目中有一个自动化配置的druid-springboot-start，如果需要可以使用这个，代替druid依赖，直接配置属性即可。
druid 自动化配置源码class地址
@Configuration
// @PropertySource("classpath:application-test.properties")
@ConfigurationProperties("spring.datasource")
public class DruidDBConfig {
private String url;
private String username;
private String userpassword;
private String driverClassName;
private int initialSize;
private int minIdle;
private int maxActive;
private int maxWait;
private int timeBetweenEvictionRunsMillis;
private int minEvictableIdleTimeMillis;
private String validationQuery;
private boolean testWhileIdle;
private boolean testOnBorrow;
private boolean testOnReturn;
private boolean poolPreparedStatements;
private int maxPoolPreparedStatementPerConnectionSize;
private String filters;
private String connectionProperties;
@Bean
// 声明其为Bean实例
@Primary
//如果同一个类型有多个实例，但需要注入一个的时候使用
// 在同样的DataSource中，首先使用被标注的DataSource
public DataSource dataSource() {
DruidDataSource datasource = new DruidDataSource();
datasource.setUrl(url);
datasource.setUsername(username);
datasource.setPassword(userpassword);
datasource.setDriverClassName(driverClassName);
// configuration
datasource.setInitialSize(initialSize);
datasource.setMinIdle(minIdle);
datasource.setMaxActive(maxActive);
datasource.setMaxWait(maxWait);
datasource
.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
datasource.setValidationQuery(validationQuery);
datasource.setTestWhileIdle(testWhileIdle);
datasource.setTestOnBorrow(testOnBorrow);
datasource.setTestOnReturn(testOnReturn);
datasource.setPoolPreparedStatements(poolPreparedStatements);
datasource
.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
try {
datasource.setFilters(filters);
} catch (SQLException e) {
/*logger.log(Level.ERROR,
"druid configuration initialization filter : {0}", e);*/
e.printStackTrace();
}
datasource.setConnectionProperties(connectionProperties);
return datasource;
}
- druid内部监控页面配置class
druid内部监控页面写于servlet，直接继承该servlet，然后配置相关属性。当前配置可通过 /druid/index.html访问管理页面
@WebServlet(urlPatterns={"/druid/*"},
initParams={
@WebInitParam(name="allow",value="127.0.0.1"),// IP白名单(没有配置或者为空，则允许所有访问)
@WebInitParam(name="deny",value="192.168.1.100"),// IP黑名单 (存在共同时，deny优先于allow)
@WebInitParam(name="loginUsername",value="admin"),// 用户名
@WebInitParam(name="loginPassword",value="123456"),// 密码
@WebInitParam(name="resetEnable",value="false")// 禁用HTML页面上的“Reset All”功能
})
public class DruidStatViewServlet extends StatViewServlet {
/**
*
*/
private static final long serialVersionUID = 8782104600990278875L;
}
- application.properties配置druid相关属性及mybatis相关属性
例如：
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.url=jdbc:postgresql://localhost:5432/testdb
spring.datasource.username=
spring.datasource.userpassword=
spring.datasource.driverClassName=org.postgresql.Driver
#连接池的配置信息
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
spring.datasource.maxWait=60000
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
spring.datasource.filters=stat,wall,log4j
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
# MyBatis 配置
mybatis.mapper-locations=classpath*:com/project/springboot_mybatis_druid/mapper/*.xml
mybatis.type-aliases-package=com.project.springboot_mybatis_druid.model
# mybatis.mapper-locations：xml文件扫描位置
# mybatis.type-aliases-package：Model包扫描位置
# mybatis.config：mybatis-config.xml配置文件的路径
# mybatis.typeHandlersPackage：扫描typeHandlers的包
# mybatis.checkConfigLocation：检查配置文件是否存在
# mybatis.executorType：设置执行模式（SIMPLE, REUSE, BATCH），默认为SIMPLE
- 编写表映射model，dao及其mybatis mapper xml，service，controller
- 编写单元测试
- 打包jar/war，pom增加build内容
jar打包完成，直接java -jar xxxx.jar即可使用
war打包完成，可放到其他容器中使用（war打包需要把packaging由jar换为war，且将spring-boot-starter-web依赖中的tomcat去除，springboot入口需要继承相关类增加相关重写方法），参考spring-boot guide html
打包war时需要修改依赖，去除tomcat
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<!-- 打包war时，需要移除嵌入式tomcat插件 -->
<!-- <exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions> -->
</dependency>
<!-- 构建打包maven插件 -->
<build>
<plugins>
<!-- maven构建 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<!-- 打包jar,只打包源码，不包含依赖jar -->
<!-- <plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
指定main入口文件
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<useUniqueVersions>false</useUniqueVersions>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>com.project.springboot_mybatis_druid.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin> -->
<!-- 打包jar 包含源码+依赖jar-->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.5.8.RELEASE</version>
<configuration>
<mainClass>${start-class}</mainClass>
<layout>ZIP</layout>
<!-- mvn spring-boot:run执行debug模式 -->
<jvmArguments>-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005</jvmArguments>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- maven打包war -->
<!-- <plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
如果想在没有web.xml文件的情况下构建WAR，请设置为false。
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin> -->
</plugins>
</build>
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