接手了一个新任务,需要修改别人的代码。看看数据库配置 ,连连接池都没,然后引入了 druid,本来一切很顺利。后来不知道怎么回事,运行起来后总是报 “Invalid bound statement (not found) ”,而且报错的都是 MybatisPlus 生成的 BaseMapper 中的方法,自己写的都能正常运行。
参考了很多其他帖子,都无果,最后弄了很久,终于搞定了,特级录之。
druid 和 mybatis-plus 配置参数如下:
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druid-spring-boot-starterartifactId>
<version>1.1.10version>
dependency>
<dependency>
<groupId>com.baomidougroupId>
<artifactId>mybatis-plus-boot-starterartifactId>
<version>3.2.0version>
dependency>
<dependency>
<groupId>com.github.pagehelpergroupId>
<artifactId>pagehelper-spring-boot-starterartifactId>
<version>1.2.13version>
<exclusions>
<exclusion>
<artifactId>jsqlparserartifactId>
<groupId>com.github.jsqlparsergroupId>
exclusion>
<exclusion>
<artifactId>mybatis-springartifactId>
<groupId>org.mybatisgroupId>
exclusion>
exclusions>
dependency>
######################################################### MybatisPlus 配置
mybatis-plus.mapper-locations=classpath:mapper/*.xml
mybatis-plus.type-aliases-package=com.yishi.entity
mybatis-plus.global-config.db-config.table-underline=true
mybatis-plus.global-config.banner=false
mybatis-plus.configuration.map-underscore-to-camel-case=true
mybatis-plus.configuration.jdbc-type-for-null=NULL
mybatis-plus.configuration.auto-mapping-behavior=FULL
######################################################### druid 配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
# 参考 https://github.com/alibaba/druid/tree/master/druid-spring-boot-starter
#################################### JDBC 配置
spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.druid.url=${mysql.url}
spring.datasource.druid.username=${mysql.username}
spring.datasource.druid.password=${mysql.password}
#################################### 连接池配置
# 初始化大小,最小,最大
spring.datasource.druid.initial-size=10
spring.datasource.druid.max-active=500
spring.datasource.druid.min-idle=5
# 配置获取连接等待超时的时间
spring.datasource.druid.max-wait=60000
# 打开PSCache,并且指定每个连接上PSCache的大小
spring.datasource.druid.pool-prepared-statements=true
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
#spring.datasource.druid.max-open-prepared-statements= #和上面的等价
#spring.datasource.druid.validation-query=
#spring.datasource.druid.validation-query-timeout=
spring.datasource.druid.test-on-borrow=false
spring.datasource.druid.test-on-return=false
spring.datasource.druid.test-while-idle=true
# 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
spring.datasource.druid.time-between-eviction-runs-millis=60000
# 配置一个连接在池中最小生存的时间,单位是毫秒
spring.datasource.druid.min-evictable-idle-time-millis=300000
#spring.datasource.druid.max-evictable-idle-time-millis=
# 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
spring.datasource.druid.filters=stat,wall,log4j
spring.datasource.druid.validation-query=SELECT 1 FROM DUAL
# 通过connectProperties属性来打开mergeSql功能;慢SQL记录
spring.datasource.druid.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
#################################### 监控配置
# WebStatFilter配置,说明请参考Druid Wiki,配置_配置WebStatFilter
spring.datasource.druid.web-stat-filter.enabled=true
spring.datasource.druid.web-stat-filter.url-pattern=/*
spring.datasource.druid.web-stat-filter.exclusions=/druid/*,*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico
spring.datasource.druid.web-stat-filter.session-stat-enable=true
spring.datasource.druid.web-stat-filter.session-stat-max-count=10
#spring.datasource.druid.web-stat-filter.principal-session-name=
#spring.datasource.druid.web-stat-filter.principal-cookie-name=
#spring.datasource.druid.web-stat-filter.profile-enable=
# StatViewServlet配置,说明请参考Druid Wiki,配置_StatViewServlet配置
spring.datasource.druid.stat-view-servlet.enabled=true
spring.datasource.druid.stat-view-servlet.url-pattern=/druid/*
spring.datasource.druid.stat-view-servlet.reset-enable=true
spring.datasource.druid.stat-view-servlet.login-username=admin
spring.datasource.druid.stat-view-servlet.login-password=admin
#spring.datasource.druid.stat-view-servlet.allow=
#spring.datasource.druid.stat-view-servlet.deny=
package com.yishi.config;
import org.springframework.boot.context.properties.ConfigurationProperties;
@ConfigurationProperties(prefix = "spring.datasource.druid")
public class DruidDataSourceProperties {
private String driverClassName;
private String url;
private String username;
private String password;
private int initialSize;
private int minIdle;
private int maxActive;
private long maxWait;
private long timeBetweenEvictionRunsMillis;
private long 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;
// 省略 get、set 方法
}
package com.yishi.config;
import com.alibaba.druid.pool.DruidDataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import javax.sql.DataSource;
import java.sql.SQLException;
@Configuration
@EnableConfigurationProperties({
DruidDataSourceProperties.class})
@MapperScan(value = MysqlDruidConfiguration.PACKAGE, sqlSessionFactoryRef = "mysqlSqlSessionFactory")
public class MysqlDruidConfiguration {
static final String PACKAGE = "com.yishi.dao";
static final String MAPPER_LOCATION = "classpath:mapper/*.xml";
@Autowired
private DruidDataSourceProperties properties;
@Bean(name = "mysqlDataSource")
@Primary
public DataSource mysqlDataSource() {
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setDriverClassName(properties.getDriverClassName());
druidDataSource.setUrl(properties.getUrl());
druidDataSource.setUsername(properties.getUsername());
druidDataSource.setPassword(properties.getPassword());
druidDataSource.setInitialSize(properties.getInitialSize());
druidDataSource.setMinIdle(properties.getMinIdle());
druidDataSource.setMaxActive(properties.getMaxActive());
druidDataSource.setMaxWait(properties.getMaxWait());
druidDataSource.setTimeBetweenEvictionRunsMillis(properties.getTimeBetweenEvictionRunsMillis());
druidDataSource.setMinEvictableIdleTimeMillis(properties.getMinEvictableIdleTimeMillis());
druidDataSource.setValidationQuery(properties.getValidationQuery());
druidDataSource.setTestWhileIdle(properties.isTestWhileIdle());
druidDataSource.setTestOnBorrow(properties.isTestOnBorrow());
druidDataSource.setTestOnReturn(properties.isTestOnReturn());
druidDataSource.setPoolPreparedStatements(properties.isPoolPreparedStatements());
druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(properties.getMaxPoolPreparedStatementPerConnectionSize());
druidDataSource.setConnectionProperties(properties.getConnectionProperties());
try {
druidDataSource.setFilters(properties.getFilters());
druidDataSource.init();
} catch (SQLException e) {
e.printStackTrace();
}
return druidDataSource;
}
@Bean(name = "mysqlTransactionManager")
@Primary
public DataSourceTransactionManager mysqlTransactionManager() {
return new DataSourceTransactionManager(mysqlDataSource());
}
@Bean(name = "mysqlSqlSessionFactory")
@Primary
public SqlSessionFactory mysqlSqlSessionFactory(@Qualifier("mysqlDataSource") DataSource mysqlDataSource)
throws Exception {
final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(mysqlDataSource);
sessionFactory.setMapperLocations(
new PathMatchingResourcePatternResolver().getResources(MysqlDruidConfiguration.MAPPER_LOCATION));
return sessionFactory.getObject();
}
@Bean(name = "mysqlJdbcTemplate")
public JdbcTemplate hiveJdbcTemplate(@Qualifier("mysqlDataSource") DataSource dataSource) {
return new JdbcTemplate(dataSource);
}
}
IDEA 2020.2
Apache Maven 3.2.5
主要库版本:
org.springframework.boot.spring-boot-dependencies.2.1.1.RELEASE
com.baomidou.mybatis-plus-boot-starter.3.2.0
com.alibaba.druid-spring-boot-starter.1.1.10
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.yishi.dao.UserDao.selectList
at org.apache.ibatis.binding.MapperMethod$SqlCommand.(MapperMethod.java:235)
at org.apache.ibatis.binding.MapperMethod.(MapperMethod.java:53)
at org.apache.ibatis.binding.MapperProxy.lambda$cachedMapperMethod$0(MapperProxy.java:98)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:97)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:92)
at com.sun.proxy.$Proxy105.selectList(Unknown Source)
at com.yishi.impl.UserServiceImpl.insert(UserServiceImpl.java:104)
at com.yishi.impl.UserServiceImpl.insert(UserServiceImpl.java:39)
at com.yishi.impl.UserServiceImpl$$FastClassBySpringCGLIB$$ac0e5ea9.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
at com.yishi.impl.UserServiceImpl$$EnhancerBySpringCGLIB$$c9a67874.insert()
at com.yishi.controller.UserController.add(UserController.java:20)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
一开始没打开 Debug 日志,导致很多 Debug 的信息都没法及时捕获,打开 Debug 日志后,WARN 如下:
2020-09-01 10:02:15 [restartedMain] WARN o.m.s.m.ClassPathMapperScanner - Skipping MapperFactoryBean with name 'userDao' and 'com.yishi.dao.UserDao' mapperInterface. Bean already defined with the same name!
...
2020-09-01 10:02:15 [restartedMain] WARN o.m.s.m.ClassPathMapperScanner - No MyBatis mapper was found in '[com.yishi.dao]' package. Please check your configuration.
可以看到,在注入 dao 时说已经存在了,难怪 Mybatis-Plus 生成的 BaseMapper 所有方法报错,压根就没注入。那什么地方先注入了呢?看来看去,原来是在 MysqlDruidConfiguration.java 这个类在自动配置时配置 “mysqlSqlSessionFactory” 这个 bean 时已经先注入 dao 相关的信息!
最后解决方式,删掉 MysqlDruidConfiguration.java 和 DruidDataSourceProperties.java这两个类,springboot 都已经帮我们处理了 druid 的配置,其实这两个类也没什么用。