springboot集成tk.mybatis，及Druid數據源

一、springboot集成Druid數據源

1、添加Druid依賴

2、添加配置

具體步驟如下：

1、添加Druid依賴

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

2、在配置文件中添加以下Druid相關的配置

spring:
  datasource:
    druid:
      url: jdbc:mysql://127.0.0.1:3306/test?serverTimezone=UTC&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&&&useSSL=true&tinyInt1isBit=false&allowMultiQueries=true
      username: root
      password: root
      driver-class-name: com.mysql.cj.jdbc.Driver
      #連接池配置
      initial-size: 5
      max-active: 100
      min-idle: 5
      max-wait: 60000
      pool-prepared-statements: true
      max-pool-prepared-statement-per-connection-size: 20
      validation-query-timeout: 60000
      validation-query: SELECT 1 FROM DUAL
      test-on-borrow: false
      test-on-return: false
      test-while-idle: true
      time-between-eviction-runs-millis: 60000
      min-evictable-idle-time-millis: 100000
      ###監控配置 begin###
      # WebStatFilter配置，說明請參考Druid Wiki，配置_配置WebStatFilter
      web-stat-filter:
        enabled: true
        url-pattern: /*
        exclusions: /druid/*,*.js,*.gif,*.jpg,*.png,*.css,*.ico
        # StatViewServlet配置，說明請參考Druid Wiki，配置_StatViewServlet配置
      stat-view-servlet:
        enabled: true
        url-pattern: /druid/*
        reset-enable: false
        login-username: admin
        login-password: admin
        allow: 127.0.0.1
      # 配置StatFilter
      filter:
        stat:
          db-type: mysql
          log-slow-sql: true
          slow-sql-millis: 5000
        # 配置WallFilter
        wall:
          enabled: true
          db-type: mysql
          config:
            delete-allow: false
            drop-table-allow: false

啓動項目可以通過http://127.0.0.1:11000/druid訪問Druid的web界面，賬號密碼是配置文件中配置的，這裏配置的是admin/admin

二、springboot集成tk.mybatis

1、添加依賴

2、增加自定義Mapper類的基類，繼承tk.mybatis的Mapper接口

3、在pom文件裏配置mybatis自動生成代碼插件

4、在resource文件裏增加mybatis自動生成代碼配置文件mybatis-generator.xml

5、在啓動類增加@MapperScan({"com.xdk.demo.comxdkuser.mapper"})註解

6、在配置文件增加Mapper文件的位置的配置【可選】

7、使用方式

下面是具體步驟：

1、添加依賴，可以在公共模塊的POM文件中添加：

        <!-- pagehelper -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>4.1.0</version>
        </dependency>

        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>RELEASE</version>
        </dependency>

2、增加自定義Mapper類的基類，繼承tk.mybatis的Mapper接口，可在公共模塊中添加以下接口：

package com.xdk.common.config.mybatis;

import tk.mybatis.mapper.common.Mapper;
import tk.mybatis.mapper.common.MySqlMapper;

public interface MysqlBaseMapper<T> extends Mapper<T>, MySqlMapper<T> {
}

3、在相應模塊的pom文件裏配置mybatis自動生成代碼插件

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

            <!--mybatis自動生成代碼插件-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.6</version>
                <dependencies>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>RELEASE</version>
                    </dependency>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.46</version>
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!--允許移動生成的文件 -->
                    <verbose>true</verbose>
                    <!-- 是否覆蓋 -->
                    <overwrite>true</overwrite>
                    <!-- 自動生成的配置 -->
                    <configurationFile>src/main/resources/mybatis-generator.xml</configurationFile>
                </configuration>
            </plugin>
        </plugins>
    </build>

4、在resource文件裏增加mybatis自動生成代碼配置文件mybatis-generator.xml

<?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="application.yml"/>

    <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">
        <property name="beginningDelimiter" value="`"/>
        <property name="endingDelimiter" value="`"/>

        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
            <property name="mappers" value="com.xdk.common.config.mybatis.MysqlBaseMapper"/>
        </plugin>
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://127.0.0.1:3306/test"
                        userId="root"
                        password="root">
        </jdbcConnection>
        <javaModelGenerator targetPackage="com.xdk.demo.comxdkuser.model" targetProject="src/main/java"/>

        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources/"/>

        <javaClientGenerator targetPackage="com.xdk.demo.comxdkuser.mapper" targetProject="src/main/java"
                             type="XMLMAPPER"/>

        <table tableName="t_test"/>

    </context>
</generatorConfiguration>

這樣修改好自己的配置後，就可以點擊maven裏的以下插件，自動生成相應的mapper及model文件了。

5、在啓動類上增加@MapperScan({"com.xdk.demo.comxdkuser.mapper"})註解，其中引號裏的是生成的Mapper接口的包路徑。

6、在配置文件增加Mapper文件的位置的配置

mybatis:
  mapper-locations: classpath:/mapper/*.xml

7、使用，這裏簡單的給出service層的一個示例

@Service
public class TestServiceImpl implements ITestService {

    @Autowired
    private TTestMapper tTestMapper;

    @Override
    public Integer insertData(String name) {
        TTest tTest = new TTest();
        tTest.setName(name);
        if (tTestMapper.insert(tTest) > 0) {
            return tTest.getId();
        }
        return -1;
    }
}