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增加README.md 项目说明

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luoxiang
2019-01-07 23:21:42 +08:00
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spring/spring-druid-mybatis-annotation/README.md
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@ -1,112 +1,48 @@
# spring +druid+ mybatis（注解配置方式）
# spring +druid+ mybatis（注解方式）
1、创建标准web maven工程，导入依赖
### 项目目录结构
![spring-druid-mybatis](D:\spring-samples-for-all\pictures\spring-druid-mybatis-annotation.png)
#### 1、创建maven工程，除了Spring基本依赖外，还需要导入mybatis和druid的相关依赖
```xml
<?xml version="1.0" encoding="UTF-8"?>
<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>com.heibaiying</groupId>
<!--jdbc 相关依赖包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<spring-base-version>5.1.3.RELEASE</spring-base-version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.4</version>
<scope>provided</scope>
</dependency>
<!--jdbc 相关依赖包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.13</version>
</dependency>
<!--单元测试相关依赖包-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-base-version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3.0</version>
</dependency>
<!--mybatis 依赖包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.6</version>
</dependency>
<!--druid 依赖-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.12</version>
</dependency>
</dependencies>
</project>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.13</version>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3.0</version>
</dependency>
<!--mybatis 依赖包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.6</version>
</dependency>
<!--druid 依赖-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.12</version>
</dependency>
```
2、新建 DispatcherServletInitializer.java继承自AbstractAnnotationConfigDispatcherServletInitializer,等价于我们在web.xml中配置的前端控制器
#### 2、新建 DispatcherServletInitializer.java继承自AbstractAnnotationConfigDispatcherServletInitializer,等价于我们在web.xml中配置的前端控制器
```java
public class DispatcherServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@ -125,18 +61,11 @@ public class DispatcherServletInitializer extends AbstractAnnotationConfigDispat
}
```
3、基础servlet 3.0的支持，可以采用注解的方式注册druid的servlet和filter
#### 3、基础servlet 3.0的支持，可以采用注解的方式注册druid的servlet和filter
​ 注：关于servlet 注解支持可以查看[Servlet 规范文档](https://github.com/heibaiying/spring-samples-for-all/blob/master/referenced%20documents/Servlet3.1%E8%A7%84%E8%8C%83%EF%BC%88%E6%9C%80%E7%BB%88%E7%89%88%EF%BC%89.pdf)中**8.1小节 注解和可插拔性**
​ 注：关于servlet 更多注解支持可以查看[Servlet 规范文档](https://github.com/heibaiying/spring-samples-for-all/blob/master/referenced%20documents/Servlet3.1%E8%A7%84%E8%8C%83%EF%BC%88%E6%9C%80%E7%BB%88%E7%89%88%EF%BC%89.pdf)中**8.1小节 注解和可插拔性**
```java
package com.heibaiying.config.druid;
import com.alibaba.druid.support.http.StatViewServlet;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
/**
* @author : heibaiying
* @description : 配置监控页面用户名密码
@ -153,12 +82,6 @@ public class DruidStatViewServlet extends StatViewServlet {
```
```java
package com.heibaiying.config.druid;
import com.alibaba.druid.support.http.WebStatFilter;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
/**
* @author : heibaiying
@ -175,7 +98,7 @@ public class DruidStatFilter extends WebStatFilter {
```
4、在resources文件夹下新建数据库配置文件mysql.properties、oracle.properties
#### 4、在resources文件夹下新建数据库配置文件mysql.properties、oracle.properties
```properties
# mysql 数据库配置
@ -193,21 +116,9 @@ oracle.username=用户名
oracle.password=密码
```
5、在新建数据库配置映射类DataSourceConfig.java
#### 5、在新建数据库配置映射类DataSourceConfig.java
```java
package com.heibaiying.config;
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
/**
* @author : heibaiying
* @description :
*/
@Configuration
@PropertySource(value = "classpath:mysql.properties")
@Data
@ -226,30 +137,9 @@ public class DataSourceConfig {
```
6、新建ServletConfig.java，进行数据库相关配置
#### 6、新建ServletConfig.java，进行数据库相关配置
```java
package com.heibaiying.config;
import com.alibaba.druid.pool.DruidDataSource;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import java.io.IOException;
import java.sql.SQLException;
;
/**
* @author : heibaiying
*/
@ -351,7 +241,7 @@ public class ServletConfig implements WebMvcConfigurer {
```
7、新建mybtais 配置文件 更多settings配置项可以参考[官方文档](http://www.mybatis.org/mybatis-3/zh/configuration.html)
#### 7、新建mybtais 配置文件，按需要进行额外参数配置， 更多settings配置项可以参考[官方文档](http://www.mybatis.org/mybatis-3/zh/configuration.html)
```xml
<?xml version="1.0" encoding="UTF-8" ?>
@ -374,7 +264,7 @@ public class ServletConfig implements WebMvcConfigurer {
```
8、新建查询接口及其对应的mapper文件
#### 8、新建查询接口及其对应的mapper文件
```java
public interface MysqlDao {
@ -421,25 +311,9 @@ public interface OracleDao {
</mapper>
```
9.新建测试controller进行测试
#### 9.新建测试controller进行测试
```java
package com.heibaiying.controller;
import com.heibaiying.bean.Relation;
import com.heibaiying.dao.MysqlDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
* @author : heibaiying
* @description :
*/
@RestController
public class MysqlController {
@ -455,19 +329,6 @@ public class MysqlController {
```
```java
package com.heibaiying.controller;
import com.heibaiying.dao.OracleDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
/**
* @author : heibaiying
* @description :
*/
@RestController
public class OracleController {
@ -482,7 +343,7 @@ public class OracleController {
```
10、druid 监控页面访问地址http://localhost:8080/druid/index.html
#### 10、druid 监控页面访问地址http://localhost:8080/druid/index.html
![druid控制台](https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/druid%E6%8E%A7%E5%88%B6%E5%8F%B0.png)

6
spring/spring-druid-mybatis-annotation/src/main/java/com/heibaiying/config/DataSourceConfig.java
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@ -15,12 +15,6 @@ import org.springframework.context.annotation.PropertySource;
@Data
public class DataSourceConfig {
/**
* 感觉这种注入的方式并不够好
* 没有spring-boot中使用@ConfigurationProperties(prefix = "config")指定前缀注入的方式优雅
*/
@Value("${mysql.driverClassName}")
private String driverClassName;
@Value("${mysql.url}")
private String url;
@Value("${mysql.username}")

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spring/spring-druid-mybatis-annotation/src/main/resources/mysql.properties
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@ -1,4 +1,4 @@
# mysql <20><><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD>
mysql.url=jdbc:mysql://localhost:3306/mysql
mysql.url=jdbc:mysql://localhost:3306/mysql?characterEncoding=UTF-8&serverTimezone=UTC&useSSL=false
mysql.username=root
mysql.password=root