网上找了很多关于springboot+druid+mybatis-Plus的配置，遇见的很多问题 也没找到好的解决方案。折腾了好几天终于自己配置通过了。
springboot的pom文件
1 <parent>
2 <groupId>org.springframework.boot</groupId>
3 <artifactId>spring-boot-starter-parent</artifactId>
4 <version>2.0.4.RELEASE</version>
5 <relativePath/> <!-- lookup parent from repository -->
6 </parent>
7
8 <properties>
9 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
10 <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
11 <java.version>1.8</java.version>
12 <mybatisplus.version>2.2.0</mybatisplus.version>
13 <mybatisplus-spring-boot-starter.version>1.0.5</mybatisplus-spring-boot-starter.version>
14 </properties>
15
16 <dependencies>
17 <dependency>
18 <groupId>org.springframework.boot</groupId>
19 <artifactId>spring-boot-starter-web</artifactId>
20 </dependency>
21 <dependency>
22 <groupId>org.springframework.boot</groupId>
23 <artifactId>spring-boot-devtools</artifactId>
24 </dependency>
25 <!--mybatis plus start-->
26 <dependency>
27 <groupId>com.baomidou</groupId>
28 <artifactId>mybatisplus-spring-boot-starter</artifactId>
29 <version>${mybatisplus-spring-boot-starter.version}</version>
30 </dependency>
31 <dependency>
32 <groupId>com.baomidou</groupId>
33 <artifactId>mybatis-plus</artifactId>
34 <version>${mybatisplus.version}</version>
35 </dependency>
36 <!--mybatis-plus end-->
37
38 <dependency>
39 <groupId>mysql</groupId>
40 <artifactId>mysql-connector-java</artifactId>
41 <scope>runtime</scope>
42 </dependency>
43 <dependency>
44 <groupId>org.springframework.boot</groupId>
45 <artifactId>spring-boot-starter-tomcat</artifactId>
46 <scope>provided</scope>
47 </dependency>
48 <dependency>
49 <groupId>org.springframework.boot</groupId>
50 <artifactId>spring-boot-starter-test</artifactId>
51 <scope>test</scope>
52 </dependency>
53 <!--配置druid数据源-->
54 <dependency>
55 <groupId>com.alibaba</groupId>
56 <artifactId>druid</artifactId>
57 <version>1.1.9</version>
58 </dependency>
59 </dependencies>
application.yml 文件
1 spring: 2 datasource: 3 url: jdbc:mysql://xxxx/selll?useUnicode=true&characterEncoding=utf-8&useSSL=false 4 username: root 5 password: xxx 6 driver-class-name: com.mysql.jdbc.Driver 7 platform: mysql 8 type: com.alibaba.druid.pool.DruidDataSource 9 # 下面为连接池的补充设置，应用到上面所有数据源中 10 # 初始化大小，最小，最大 11 initialSize: 1 12 minIdle: 3 13 maxActive: 20 14 # 配置获取连接等待超时的时间 15 maxWait: 60000 16 # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 17 timeBetweenEvictionRunsMillis: 60000 18 # 配置一个连接在池中最小生存的时间，单位是毫秒 19 minEvictableIdleTimeMillis: 30000 20 validationQuery: select ‘x‘ 21 testWhileIdle: true 22 testOnBorrow: false 23 testOnReturn: false 24 # 打开PSCache，并且指定每个连接上PSCache的大小 25 poolPreparedStatements: true 26 maxPoolPreparedStatementPerConnectionSize: 20 27 # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，‘wall‘用于防火墙 28 filters: stat,wall,slf4j 29 # 通过connectProperties属性来打开mergeSql功能；慢SQL记录 30 connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000 31 # 合并多个DruidDataSource的监控数据 32 #useGlobalDataSourceStat: true 33 server: 34 port: 8080 35 mybatis-plus: 36 mapper-locations: mapper/*.xml 37 type-aliases-package: com.wsy.dcxt.pojo 38 global-config: 39 id-type: 0 40 field-strategy: 2 41 capital-mode: true 42 refresh-mapper: true
数据源的配置
1 package com.wsy.dcxt.config.dao;
2
3 import java.beans.PropertyVetoException;
4
5 import com.alibaba.druid.pool.DruidDataSource;
6 import org.mybatis.spring.annotation.MapperScan;
7 import org.springframework.beans.factory.annotation.Value;
8 import org.springframework.boot.context.properties.ConfigurationProperties;
9 import org.springframework.context.annotation.Bean;
10 import org.springframework.context.annotation.Configuration;
11
12 import javax.sql.DataSource;
13
14 /**
15 * 配置datasource到ioc容器里面
16 *
17 * @author xiangze
18 *
19 */
20 @Configuration
21 @MapperScan(basePackages = "com.wsy.dcxt.dao")
22 public class DataSourceConfiguration {
23 @Value("${spring.datasource.driver-class-name}")
24 private String jdbcDriver;
25 @Value("${spring.datasource.url}")
26 private String jdbcUrl;
27 @Value("${spring.datasource.username}")
28 private String jdbcUsername;
29 @Value("${spring.datasource.password}")
30 private String jdbcPassword;
31
32
33 /**
34 * 生成与spring-dao.xml对应的bean dataSource
35 *
36 * @return
37 * @throws PropertyVetoException
38 */
39 @Bean(name = "dataSource")
40 @ConfigurationProperties(prefix = "spring.datasource")
41 public DataSource dataSource(){
42 return new DruidDataSource();
43 }
44
45 }
Mybatis-Plus的配置
1 package com.wsy.dcxt.config.dao;
2
3 import java.io.IOException;
4
5 import javax.sql.DataSource;
6 import org.apache.ibatis.plugin.Interceptor;
7 import com.alibaba.druid.pool.DruidDataSource;
8 import com.baomidou.mybatisplus.MybatisSessionFactoryBuilder;
9 import com.baomidou.mybatisplus.entity.GlobalConfiguration;
10 import com.baomidou.mybatisplus.plugins.PaginationInterceptor;
11 import com.baomidou.mybatisplus.plugins.PerformanceInterceptor;
12 import com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean;
13 import org.apache.ibatis.session.SqlSessionFactory;
14 import org.slf4j.Logger;
15 import org.slf4j.LoggerFactory;
16 import org.springframework.beans.factory.annotation.Autowired;
17 import org.springframework.beans.factory.annotation.Qualifier;
18 import org.springframework.beans.factory.annotation.Value;
19 import org.springframework.context.annotation.Bean;
20 import org.springframework.context.annotation.Configuration;
21 import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
22 import org.springframework.core.io.support.ResourcePatternResolver;
23 import org.springframework.jdbc.datasource.DataSourceTransactionManager;
24
25 @Configuration
26 public class MybatisPlusConfig {
27 private static final Logger log= LoggerFactory.getLogger(DataSourceConfiguration.class);
28 @Autowired
29 private DataSource dataSource;
30 @Value("${mybatis-plus.global-config.id-type}")
31 private Integer idType;
32 @Value("${mybatis-plus.global-config.field-strategy}")
33 private int fieldStrategy;
34 @Value("${mybatis-plus.global-config.capital-mode}")
35 private boolean capitalMode;
36 @Value("${mybatis-plus.mapper-locations}")
37 private String mapperLocations;
38 @Value("${mybatis-plus.type-aliases-package}")
39 private String typeAliasesPackage;
40 @Value("${mybatis-plus.global-config.refresh-mapper}")
41 private boolean refreshMapper;
42
43 //mybatis plus 全局配置
44 @Bean(name = "globalConfig")
45 public GlobalConfiguration globalConfiguration(){
46 log.info("初始化GlobalConfiguration");
47 GlobalConfiguration configuration=new GlobalConfiguration();
48 //主键策略
49 configuration.setRefresh(refreshMapper);
50 configuration.setIdType(idType);
51 //字段策略
52 configuration.setFieldStrategy(fieldStrategy);
53 //数据库大写 下划线转换
54 configuration.setCapitalMode(capitalMode);
55 return configuration;
56 }
57 @Bean(name = "sqlSessionFactory")
58 public SqlSessionFactory createSqlSessionFactoryBean(@Qualifier(value = "globalConfig") GlobalConfiguration configuration) throws Exception{
59 log.info("初始化SqlSessionFactory");
60 MybatisSqlSessionFactoryBean sqlSessionFactoryBean=new MybatisSqlSessionFactoryBean();
61 sqlSessionFactoryBean.setDataSource(dataSource);
62 Interceptor[] interceptor={new PaginationInterceptor()};
63 sqlSessionFactoryBean.setPlugins(interceptor);
64 ResourcePatternResolver resolver=new PathMatchingResourcePatternResolver();
65 try{
66 sqlSessionFactoryBean.setGlobalConfig(configuration);
67 sqlSessionFactoryBean.setMapperLocations(resolver.getResources(mapperLocations));
68 sqlSessionFactoryBean.setTypeAliasesPackage(typeAliasesPackage);
69 return sqlSessionFactoryBean.getObject();
70 }catch (Exception e){
71 e.printStackTrace();
72 }
73 return sqlSessionFactoryBean.getObject();
74 }
75 @Bean(name = "transactionManager")
76 public DataSourceTransactionManager transactionManager(){
77 log.info("初始化transactionManager");
78 return new DataSourceTransactionManager(dataSource);
79 }
80
81
82
83
84 }
Druid对于性能检测的配置
DruidStatFilter
1 package com.wsy.dcxt.config.dao;
2
3 import com.alibaba.druid.support.http.WebStatFilter;
4
5 import javax.servlet.annotation.WebFilter;
6 import javax.servlet.annotation.WebInitParam;
7
8 @WebFilter(filterName = "druidWebStatFilter", urlPatterns = "/*",
9 initParams = {
10 @WebInitParam(name = "exclusions",
11 value = "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*") })
12 public class DruidStatFilter extends WebStatFilter {
13
14 }
DruidStatViewServlet
1 package com.wsy.dcxt.config.dao;
2
3 import com.alibaba.druid.support.http.StatViewServlet;
4
5 import javax.servlet.annotation.WebInitParam;
6 import javax.servlet.annotation.WebServlet;
7
8 /**
9 * Druid 的数据源状态监控
10 */
11 @WebServlet(urlPatterns = "/druid/*",
12 initParams = {
13 @WebInitParam(name = "allow",value = "127.0.0.1"),
14 @WebInitParam(name = "deny",value = "192.168.1.3"),
15 @WebInitParam(name ="loginUsername",value = "admin"),
16 @WebInitParam(name = "loginPassword",value = "123456"),
17 @WebInitParam(name = "resetEnable",value = "false")//禁止html页面上reset All功能
18 })
19 public class DruidStatViewServlet extends StatViewServlet {
20 private static final long serialVersionUID = 1L;
21 }
打开浏览器,输入配置allow的ip 用户名 密码 即可访问到性能检测面板
注: 记得在主类上添加
@ServletComponentScan 注解 不然会报404
对于传统的xml配置.测试了一个查看所有用户的方法
1 package com.wsy.dcxt.dao;
2
3 import com.wsy.dcxt.pojo.User;
4 import com.baomidou.mybatisplus.mapper.BaseMapper;
5 import org.apache.ibatis.annotations.Insert;
6
7 import java.util.List;
8
9 public interface UserMapper extends BaseMapper<User>{
10
11
12 List<User> findAllUsers();
13 }
介绍UserMapper.java和UserMapper.xml
1 package com.wsy.dcxt.dao;
2
3 import com.wsy.dcxt.pojo.User;
4 import com.baomidou.mybatisplus.mapper.BaseMapper;
5 import org.apache.ibatis.annotations.Insert;
6
7 import java.util.List;
8
9 public interface UserMapper extends BaseMapper<User>{
10
11
12 List<User> findAllUsers();
13 }
UserMapper.xml 记得统一 src/main/resouce/mapper (根据yml 文件的配置走)
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE mapper 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 5 <mapper namespace="com.wsy.dcxt.dao.UserMapper"> 6 <select id="findAllUsers" resultType="user"> 7 select * from user 8 </select> 9 </mapper>
最后贴出测试类，开森一会儿
1 package com.wsy.dcxt.dao;
2
3 import com.wsy.dcxt.pojo.User;
4 import com.wsy.dcxt.service.UserService;
5 import org.junit.Test;
6 import org.junit.runner.RunWith;
7 import org.springframework.beans.factory.annotation.Autowired;
8 import org.springframework.boot.test.context.SpringBootTest;
9 import org.springframework.test.context.junit4.SpringRunner;
10
11 import java.util.List;
12
13 import static org.junit.Assert.assertEquals;
14
15 @SpringBootTest
16 @RunWith(SpringRunner.class)
17 public class TestUserMapper {
18 @Autowired
19 private UserMapper userMapper;
20 @Test
21 public void testMapper(){
22 List<User> users = userMapper.findAllUsers();
23 assertEquals(3,users.size());
24
25
26 }
27 @Test
28 public void insertUser(){
29 User user =new User();
30 user.setPassword("123");
31 user.setUsername("90");
32 int result=userMapper.insert(user);
33 System.out.println(result);
34
35 }
36 }
好多次的InvalidBound 超级神奇 有这么几处需要切记！切记！
<1>,Mapper.java的方法和mapper.xml的方法是否匹配
<2>,namespace 是否填写正确
<3>,yml 中 读取mapper.xml的路径是否正确
<4>,mapperScan注释是否调用
原文地址：https://www.cnblogs.com/shine-rainbow/p/9618100.html
时间： 2024-08-30 01:02:45