基於SpringBoot+Springmvc+mybatis+mybatis-generator程式碼自動生成的框架。
當我們在開發java程式的時候,經常會遇到快速開發,因此我們用spring Boot。spring Boot的牛逼之處就是快。
一:開發環境配置
開發環境:eclipse
java版本:1.8
maven:maven3.2.8
二:maven專案生成
首先在eclipse中點選New->maven->Maven Project 然後出現下圖點選next
接著繼續點選next.如下圖,點選finish
三:配置自動生成程式碼
1:在pom中引入需要的jar包。
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.6.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<start-class>com.practice.App</start-class>
<java.version>1.7</java.version>
<lombok.version>1.14.8</lombok.version>
<log4jdbc.log4j2.version>1.16</log4jdbc.log4j2.version>
<rest.assured.version>2.3.3</rest.assured.version>
</properties>
<dependencies>
<!--MG依賴-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.3</version>
<scope>test</scope>
</dependency>
<!--druid資料庫連線池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.26</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<!--springboot依賴-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.bgee.log4jdbc-log4j2</groupId>
<artifactId>log4jdbc-log4j2-jdbc4.1</artifactId>
<version>${log4jdbc.log4j2.version}</version>
</dependency>
<!--springboottest依賴-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- Springboot 熱部署 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<version>1.3.6.RELEASE</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.jayway.restassured</groupId>
<artifactId>rest-assured</artifactId>
<version>${rest.assured.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.7.RELEASE</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.21</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
<version>1.3.6.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<!-- mybatis 分頁外掛 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>4.1.6</version>
</dependency>
</dependencies>
<build>
<plugins>
<!--MG的外掛-->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.3</version>
<configuration>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<dependencies>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java
配置這個依賴主要是為了等下在配置MG的時候可以不用配置classPathEntry這樣的一個屬性,避免
程式碼的耦合度太高 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
</dependencies>
</plugin>
<!--springboot的外掛-->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>springloaded</artifactId>
<version>${spring-loaded.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
2:準備相應的配置檔案
首先:在src/main/resources/下準備相應的properties檔案
(1):準備application.properties檔案。內容如下:
spring.thymeleaf.cache=false
logging.level.jdbc=OFF
logging.level.jdbc.sqltiming=error
logging.level.jdbc.resultsettable=error
#申明使用哪個配置檔案
spring.profiles.active=dev
(2):準備application-dev.properties檔案。準備這個檔案是英文有spring.profiles.active=dev決定,如果spring.profiles.active=test。這個時候就需要application-test.properties檔案了。
#資料庫配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test
spring.datasource.username=root
spring.datasource.password=
# 下面為連線池的補充設定,應用到上面所有資料來源中# 初始化大小,最小,最大
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
# 配置獲取連線等待超時的時間
spring.datasource.maxWait=60000
# 配置間隔多久才進行一次檢測,檢測需要關閉的空閒連線,單位是毫秒
spring.datasource.timeBetweenEvictionRunsMillis=60000
# 配置一個連線在池中最小生存的時間,單位是毫秒
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 開啟PSCache,並且指定每個連線上PSCache的大小
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置監控統計攔截的filters,去掉後監控介面sql無法統計,'wall'用於防火牆
spring.datasource.filters=stat,wall,log4j
# 通過connectProperties屬性來開啟mergeSql功能;慢SQL記錄
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
# 合併多個DruidDataSource的監控資料
#spring.datasource.useGlobalDataSourceStat=true
#檢視模型
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.suffix=.html
spring.thymeleaf.cache=false
spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.content-type=text/html
spring.thymeleaf.check-template-location=true
(3):準備自動生成程式碼xml檔案(generatorConfig.xml)以及xml檔案中配置檔案(generatorConfig.properties)
generatorConfig.properties內容如下:
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/test
username=root
password=
generatorConfig.xml內容如下:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<properties resource="generatorConfig.properties"/>
<context id="ssm" targetRuntime="MyBatis3">
<plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin" />
<plugin type="org.mybatis.generator.plugins.SerializablePlugin" />
<plugin type="org.mybatis.generator.plugins.CaseInsensitiveLikePlugin" />
<!-- <plugin type="org.mybatis.generator.plugins.ToStringPlugin"></plugin> -->
<commentGenerator>
<property name="suppressDate" value="true" />
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!--
<jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@10.100.1.20:1521:db1"
userId="rams_test" password="bangsun">
</jdbcConnection>
-->
<jdbcConnection driverClass="${driver}"
connectionURL="${url}" userId="${username}" password="${password}">
</jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- 生成javabean ,其中targetPackage是自動生成javabean的地址。 -->
<javaModelGenerator targetPackage="com.zhm.SpringBootTest.pojo" targetProject="src/main/java">
<property name="constructorBased" value="true" />
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- 生成sqlmap ,其中targetPackage是自動生成sqlMap的地址。 -->
<sqlMapGenerator targetPackage="com.zhm.SpringBootTest.sqlmap" targetProject="src/main/resources">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!-- 生成sqlmap ,其中targetPackage是自動生成dao的地址。 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.zhm.SpringBootTest.mapper"
targetProject="src/main/java">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<table schema="mybatis" tableName="user" domainObjectName="User">
<property name="constructorBased" value="true" />
<property name="useActualColumnNames" value="false" />
<property name="ignoreQualifiersAtRuntime" value="true" />
</table>
</context>
</generatorConfiguration>
其中紅色處特別注意,這是將sqlMapper放在資原始檔中。在下面的實現資料來源的配置要特別注意。
想了解更多generator.xml的知識可以參考如下:http://blog.csdn.net/wszhm123/article/details/76152663
通過上面的操作就配置好了自動生成程式碼的操作。
最後執行程式生成好程式碼:點選pom.xml右鍵 Run->Maven Build輸入mybatis-generator:generate點選執行,如下圖,就會生成好基礎程式碼和xml了。
四:實現基本功能。
1:實現資料來源的配置。準備如DruidDataSourceConfig的java。如下程式碼:
import com.alibaba.druid.pool.DruidDataSource;
import com.github.pagehelper.PageHelper;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.context.ApplicationContextException;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.util.StringUtils;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Properties;
/**
* @author: YeJunwei Date: 2016/12/2 Time: 15:07
*/
@Configuration
@EnableTransactionManagement
//掃描dao檔案地址
@MapperScan(value = "com.zhm.SpringBootTest.mapper")
public class DruidDataSourceConfig implements EnvironmentAware {
private Environment environment;
private RelaxedPropertyResolver propertyResolver;
@Override
public void setEnvironment(Environment environment) {
this.environment = environment;
this.propertyResolver = new RelaxedPropertyResolver(environment, "spring.datasource.");
}
//註冊dataSource
@Bean(initMethod = "init", destroyMethod = "close")
public DruidDataSource dataSource() throws SQLException {
if (StringUtils.isEmpty(propertyResolver.getProperty("url"))) {
System.out.println("Your database connection pool configuration is incorrect!"
+ " Please check your Spring profile, current profiles are:"
+ Arrays.toString(environment.getActiveProfiles()));
throw new ApplicationContextException(
"Database connection pool is not configured correctly");
}
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setDriverClassName(propertyResolver.getProperty("driver-class-name"));
druidDataSource.setUrl(propertyResolver.getProperty("url"));
druidDataSource.setUsername(propertyResolver.getProperty("username"));
druidDataSource.setPassword(propertyResolver.getProperty("password"));
druidDataSource.setInitialSize(Integer.parseInt(propertyResolver.getProperty("initialSize")));
druidDataSource.setMinIdle(Integer.parseInt(propertyResolver.getProperty("minIdle")));
druidDataSource.setMaxActive(Integer.parseInt(propertyResolver.getProperty("maxActive")));
druidDataSource.setMaxWait(Integer.parseInt(propertyResolver.getProperty("maxWait")));
druidDataSource.setTimeBetweenEvictionRunsMillis(Long.parseLong(propertyResolver.getProperty("timeBetweenEvictionRunsMillis")));
druidDataSource.setMinEvictableIdleTimeMillis(Long.parseLong(propertyResolver.getProperty("minEvictableIdleTimeMillis")));
druidDataSource.setValidationQuery(propertyResolver.getProperty("validationQuery"));
druidDataSource.setTestWhileIdle(Boolean.parseBoolean(propertyResolver.getProperty("testWhileIdle")));
druidDataSource.setTestOnBorrow(Boolean.parseBoolean(propertyResolver.getProperty("testOnBorrow")));
druidDataSource.setTestOnReturn(Boolean.parseBoolean(propertyResolver.getProperty("testOnReturn")));
druidDataSource.setPoolPreparedStatements(Boolean.parseBoolean(propertyResolver.getProperty("poolPreparedStatements")));
druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(Integer.parseInt(propertyResolver.getProperty("maxPoolPreparedStatementPerConnectionSize")));
druidDataSource.setFilters(propertyResolver.getProperty("filters"));
return druidDataSource;
}
@Bean
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource());
//mybatis分頁
PageHelper pageHelper = new PageHelper();
Properties props = new Properties();
props.setProperty("dialect", "mysql");
props.setProperty("reasonable", "true");
props.setProperty("supportMethodsArguments", "true");
props.setProperty("returnPageInfo", "check");
props.setProperty("params", "count=countSql");
pageHelper.setProperties(props); //新增外掛
sqlSessionFactoryBean.setPlugins(new Interceptor[]{pageHelper});
PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
//掃描xml檔案地址
sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath:com/zhm/SpringBootTest/sqlmap/*.xml"));
return sqlSessionFactoryBean.getObject();
}
@Bean
public PlatformTransactionManager transactionManager() throws SQLException {
return new DataSourceTransactionManager(dataSource());
}
}
2:準備相應的service 和Serviceimpl
如IUserService ,程式碼如下:
public interface IUserService {
User getUserById(String id);
}
如UserServiceImpl,程式碼如下:
@Component
public class UserServiceImpl implements IUserService{
@Autowired
private UserMapper userMapper;
@Override
public User getUserById(String id) {
// TODO Auto-generated method stub
return userMapper.selectByPrimaryKey(id);
}
}
3:準備controller,如UserController程式碼如下:
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.zhm.SpringBootTest.service.IUserService;
@RestController
public class UserController {
@Autowired
private IUserService userService;
@RequestMapping(value="/user/{id}")
public Object getUser(@PathVariable String id){
return userService.getUserById(id);
}
}
這樣基本功能就開發好了,接下來準備啟動java如下:
@SpringBootApplication
public class App
{
public static void main( String[] args )
{
SpringApplication.run(App.class, args);
}
}
然後啟動App.java這樣服務就啟動了。完整的專案結構如下圖:
在頁面中輸入http://localhost:8080/user/1就會看到返回的json結果。
參考地址:http://blog.csdn.net/yezhuanxu/article/details/53483130