20. Spring Boot 默认、自定义数据源 、配置多个数据源 jdbcTemplate操作DB

 Spring-Boot-2.0.0-M1版本将默认的数据库连接池从tomcat jdbc pool改为了hikari，这里主要研究下hikari的默认配置

0.  创建Spring Boot项目，选中 Web、MySQL、JDBC 依赖

　　　　<!--集成mysql数据库-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

 1. 启动类默认加载了DataSourceAutoConfiguration，默认数据源是HikariDataSource

@SpringBootApplicationpublic class SpringBootJdbcApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootJdbcApplication.class, args);
    }
}

 2. 数据源配置文件属性

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/springboot   //系统自带的默认数据源配置中，用 url，若是自定义的HikariDataSource，用jdbcUrl  (自定义的其它类型数据源名称取什么待测)
    username: root
    password: xiaochao
    driver-class-name: com.mysql.cj.jdbc.Driver　　　　//老版本用com.mysql.jdbc.Driver
    name: hikari

3. 测试

@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringBootJdbcApplicationTests {

    @Autowired
    DataSource dataSource;

    @Test
    public void contextLoads() throws SQLException {
        System.out.println(dataSource.getClass().getName());
        System.out.println(dataSource.getConnection());
    }

}
结果：
HikariProxyConnection@265939934 wrapping com.mysql.cj.jdbc.ConnectionImpl@14982a82
com.zaxxer.hikari.HikariDataSource

  

4. 自定义数据源

　　4.1 首先排除掉系统默认数据源

• 　　exclude：排除，不包括，祛除，赶出，反义词 ： include

  @SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})public class SpringBootJdbcApplication {
  
      public static void main(String[] args) {
          SpringApplication.run(SpringBootJdbcApplication.class, args);
      }
  }

　　4.2 在配置类中加入自定义的线程池

• @Bean
  @ConfigurationProperties("spring.datasource") //此配置项名称是自定义的，只要和配置文件中的各项名称对应上就好
  public HikariDataSource dataSource() {
      return DataSourceBuilder.create().type(HikariDataSource.class).build();
  }

• 4.3 把配置文件中的spring.datasource.url 改为spring.datasource.jdbcUrl

• 4.4 自动以tomcat jdbc 数据源 首先引入tomcat-jdbc依赖

• <dependency>
      <groupId>org.apache.tomcat</groupId>
      <artifactId>tomcat-jdbc</artifactId>
      <version>9.0.13</version>
  </dependency>

• 配置tomcat数据源Bean

　　

@Configuration
public class MyConfig {

    @Bean
    @ConfigurationProperties("spring.datasource") //此配置项名称是自定义的，只要能和配置文件中的各项名称对应上就好
    public org.apache.tomcat.jdbc.pool.DataSource dataSource() {
        return DataSourceBuilder.create().type(org.apache.tomcat.jdbc.pool.DataSource.class).build();
    }

}

自定义其它类型的数据源方式同理

配置多个数据源

 

 5. 数据源自动配置   源码解析

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//

package org.springframework.boot.autoconfigure.jdbc;

import com.zaxxer.hikari.HikariDataSource;
import javax.sql.DataSource;
import org.apache.commons.dbcp2.BasicDataSource;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DatabaseDriver;
import org.springframework.context.annotation.Bean;
import org.springframework.util.StringUtils;

abstract class DataSourceConfiguration {
    DataSourceConfiguration() {
    }

    protected static <T> T createDataSource(DataSourceProperties properties, Class<? extends DataSource> type) {
        return properties.initializeDataSourceBuilder().type(type).build();
    }

    @ConditionalOnMissingBean({DataSource.class})
    @ConditionalOnProperty(
        name = {"spring.datasource.type"}
    )
    static class Generic {
        Generic() {
        }

        @Bean
        public DataSource dataSource(DataSourceProperties properties) {
            return properties.initializeDataSourceBuilder().build();
        }
    }

    @ConditionalOnClass({BasicDataSource.class})
    @ConditionalOnMissingBean({DataSource.class})
    @ConditionalOnProperty(
        name = {"spring.datasource.type"},
        havingValue = "org.apache.commons.dbcp2.BasicDataSource",
        matchIfMissing = true
    )
    static class Dbcp2 {
        Dbcp2() {
        }

        @Bean
        @ConfigurationProperties(
            prefix = "spring.datasource.dbcp2"
        )
        public BasicDataSource dataSource(DataSourceProperties properties) {
            return (BasicDataSource)DataSourceConfiguration.createDataSource(properties, BasicDataSource.class);
        }
    }

    @ConditionalOnClass({HikariDataSource.class})
    @ConditionalOnMissingBean({DataSource.class})
    @ConditionalOnProperty(
        name = {"spring.datasource.type"},
        havingValue = "com.zaxxer.hikari.HikariDataSource",
        matchIfMissing = true
    )
    static class Hikari {
        Hikari() {
        }

        @Bean
        @ConfigurationProperties(
            prefix = "spring.datasource.hikari"
        )
        public HikariDataSource dataSource(DataSourceProperties properties) {
            HikariDataSource dataSource = (HikariDataSource)DataSourceConfiguration.createDataSource(properties, HikariDataSource.class);
            if (StringUtils.hasText(properties.getName())) {
                dataSource.setPoolName(properties.getName());
            }

            return dataSource;
        }
    }

    @ConditionalOnClass({org.apache.tomcat.jdbc.pool.DataSource.class})
    @ConditionalOnMissingBean({DataSource.class})
    @ConditionalOnProperty(
        name = {"spring.datasource.type"},
        havingValue = "org.apache.tomcat.jdbc.pool.DataSource",
        matchIfMissing = true
    )
    static class Tomcat {
        Tomcat() {
        }

        @Bean
        @ConfigurationProperties(
            prefix = "spring.datasource.tomcat"
        )
        public org.apache.tomcat.jdbc.pool.DataSource dataSource(DataSourceProperties properties) {
            org.apache.tomcat.jdbc.pool.DataSource dataSource = (org.apache.tomcat.jdbc.pool.DataSource)DataSourceConfiguration.createDataSource(properties, org.apache.tomcat.jdbc.pool.DataSource.class);
            DatabaseDriver databaseDriver = DatabaseDriver.fromJdbcUrl(properties.determineUrl());
            String validationQuery = databaseDriver.getValidationQuery();
            if (validationQuery != null) {
                dataSource.setTestOnBorrow(true);
                dataSource.setValidationQuery(validationQuery);
            }

            return dataSource;
        }
    }
}

参考文档：Spring Boot 官方文档 ——  84.1 Configure a Custom DataSource 章节

package org.springframework.boot.autoconfigure.jdbc;

@Configuration
@ConditionalOnClass({DataSource.class, EmbeddedDatabaseType.class})
@EnableConfigurationProperties({DataSourceProperties.class})
@Import({DataSourcePoolMetadataProvidersConfiguration.class, DataSourceInitializationConfiguration.class})
public class DataSourceAutoConfiguration {
    public DataSourceAutoConfiguration() {}
　　。。。。。。
}

@Configuration
@Import({DataSourceInitializerInvoker.class, DataSourceInitializationConfiguration.Registrar.class})
class DataSourceInitializationConfiguration {
    DataSourceInitializationConfiguration() {
    }

    static class Registrar implements ImportBeanDefinitionRegistrar {
        private static final String BEAN_NAME = "dataSourceInitializerPostProcessor";

        Registrar() {
        }

        public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata, BeanDefinitionRegistry registry) {
            if (!registry.containsBeanDefinition("dataSourceInitializerPostProcessor")) {
                GenericBeanDefinition beanDefinition = new GenericBeanDefinition();
                beanDefinition.setBeanClass(DataSourceInitializerPostProcessor.class);
                beanDefinition.setRole(2);
                beanDefinition.setSynthetic(true);
                registry.registerBeanDefinition("dataSourceInitializerPostProcessor", beanDefinition);
            }

        }
    }
}

package org.springframework.boot.autoconfigure.jdbc;

import javax.sql.DataSource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationListener;  //此类是一个监听器

class DataSourceInitializerInvoker implements ApplicationListener<DataSourceSchemaCreatedEvent>, InitializingBean {
    private static final Log logger = LogFactory.getLog(DataSourceInitializerInvoker.class);
    private final ObjectProvider<DataSource> dataSource;
    private final DataSourceProperties properties;
    private final ApplicationContext applicationContext;
    private DataSourceInitializer dataSourceInitializer;
    private boolean initialized;

    DataSourceInitializerInvoker(ObjectProvider<DataSource> dataSource, DataSourceProperties properties, ApplicationContext applicationContext) {
        this.dataSource = dataSource;
        this.properties = properties;
        this.applicationContext = applicationContext;
    }

    public void afterPropertiesSet() {
        DataSourceInitializer initializer = this.getDataSourceInitializer();
        if (initializer != null) {
            boolean schemaCreated = this.dataSourceInitializer.createSchema();  //run DDL schema
            if (schemaCreated) {
                this.initialize(initializer);
            }
        }

    }

    private void initialize(DataSourceInitializer initializer) {
        try {
            this.applicationContext.publishEvent(new DataSourceSchemaCreatedEvent(initializer.getDataSource()));
            if (!this.initialized) {
                this.dataSourceInitializer.initSchema();　　//run init data schema
                this.initialized = true;
            }
        } catch (IllegalStateException var3) {
            logger.warn("Could not send event to complete DataSource initialization (" + var3.getMessage() + ")");
        }

    }
    //监听器监听到事件后运行的方法
    public void onApplicationEvent(DataSourceSchemaCreatedEvent event) {
        DataSourceInitializer initializer = this.getDataSourceInitializer();
        if (!this.initialized && initializer != null) {
            initializer.initSchema();  //run init data schema
            this.initialized = true;
        }

    }

    private DataSourceInitializer getDataSourceInitializer() {
        if (this.dataSourceInitializer == null) {
            DataSource ds = (DataSource)this.dataSource.getIfUnique();
            if (ds != null) {
                this.dataSourceInitializer = new DataSourceInitializer(ds, this.properties, this.applicationContext);
            }
        }

        return this.dataSourceInitializer;
    }
}

package org.springframework.boot.autoconfigure.jdbc;
import ......;
class DataSourceInitializer { //【初始化程序】
    private static final Log logger = LogFactory.getLog(DataSourceInitializer.class);
    private final DataSource dataSource;
    private final DataSourceProperties properties;
    private final ResourceLoader resourceLoader;

    DataSourceInitializer(DataSource dataSource, DataSourceProperties properties, ResourceLoader resourceLoader) {
        this.dataSource = dataSource;
        this.properties = properties;
        this.resourceLoader = (ResourceLoader)(resourceLoader != null ? resourceLoader : new DefaultResourceLoader());
    }

    DataSourceInitializer(DataSource dataSource, DataSourceProperties properties) {
        this(dataSource, properties, (ResourceLoader)null);
    }

    public DataSource getDataSource() {
        return this.dataSource;
    }
　　//建表SQL,classpath*:schema-*.sql
    public boolean createSchema() {
        //this.properties.getSchema()即：用户在配置文件中指定的 spring.datasource.schema=xxx
        List<Resource> scripts = this.getScripts("spring.datasource.schema", this.properties.getSchema(), "schema");
        if (!scripts.isEmpty()) {
            if (!this.isEnabled()) {
                logger.debug("Initialization disabled (not running DDL scripts)");
                return false;
            }

            String username = this.properties.getSchemaUsername();
            String password = this.properties.getSchemaPassword();
            this.runScripts(scripts, username, password);
        }

        return !scripts.isEmpty();
    }
    
    //初始化数据SQL ,classpath*:data-*.sql
    public void initSchema() {
　　　　 //this.properties.getData 即：用户在配置文件中自定义的：spring.datasource.data=XXX
        List<Resource> scripts = this.getScripts("spring.datasource.data", this.properties.getData(), "data");
        if (!scripts.isEmpty()) {
            if (!this.isEnabled()) {
                logger.debug("Initialization disabled (not running data scripts)");
                return;
            }

            String username = this.properties.getDataUsername();
            String password = this.properties.getDataPassword();
            this.runScripts(scripts, username, password);
        }

    }

    。。。。。。
    
    //根据特定名称规则获取SQL脚本文件
    private List<Resource> getScripts(String propertyName, List<String> resources, String fallback) {
        if (resources != null) { //指定名称的脚本文件名字集合
            return this.getResources(propertyName, resources, true); //从指定名称的脚本名字文件集合中获取脚本SQL
        } else { //若是没有指定的，则在类路径下寻找通配规则的脚本文件
            String platform = this.properties.getPlatform(); //平台，纲领
            List<String> fallbackResources = new ArrayList();
　　　　　　　//这里为啥add（） 2个 SQL？
            fallbackResources.add("classpath*:" + fallback + "-" + platform + ".sql");  //DatasourceProperties中的构造器中，platform默认被赋值为  all
            fallbackResources.add("classpath*:" + fallback + ".sql");
            return this.getResources(propertyName, fallbackResources, false);
        }
    }

   。。。。。。
    //运行SQL脚本
    private void runScripts(List<Resource> resources, String username, String password) {
        if (!resources.isEmpty()) {
            ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
            populator.setContinueOnError(this.properties.isContinueOnError());
            populator.setSeparator(this.properties.getSeparator());
            if (this.properties.getSqlScriptEncoding() != null) {
                populator.setSqlScriptEncoding(this.properties.getSqlScriptEncoding().name());
            }

            Iterator var5 = resources.iterator();

            while(var5.hasNext()) {
                Resource resource = (Resource)var5.next();
                populator.addScript(resource);
            }

            DataSource dataSource = this.dataSource;
            if (StringUtils.hasText(username) && StringUtils.hasText(password)) {
                dataSource = DataSourceBuilder.create(this.properties.getClassLoader()).driverClassName(this.properties.determineDriverClassName()).url(this.properties.determineUrl()).username(username).password(password).build();
            }

            DatabasePopulatorUtils.execute(populator, dataSource);
        }
    }
}

package org.springframework.boot.autoconfigure.jdbc;

@ConfigurationProperties(
    prefix = "spring.datasource"
)
public class DataSourceProperties implements BeanClassLoaderAware, InitializingBean {private Class<? extends DataSource> type;
    private String driverClassName;
    private String url;
    private String username;
    private String password;private DataSourceInitializationMode initializationMode;
    private String platform;
    private List<String> schema;private Charset sqlScriptEncoding;
　　 ......public DataSourceProperties() {
        this.initializationMode = DataSourceInitializationMode.EMBEDDED;
        this.platform = "all";
        this.continueOnError = false;
        this.separator = ";";
        this.embeddedDatabaseConnection = EmbeddedDatabaseConnection.NONE;
        this.xa = new DataSourceProperties.Xa();
    }
}

通配规则：schema‐*.sql、data‐*.sql，　　优先级第三高   eg：schema-emp.sql, schema-dept.sql；　　data-emp.sql ，data-dept.sql

默认规则：schema.sql，schema‐all.sql (或者关系，给用户多个选择)；　　 优先级第二高，

自定义规则：yml中配置，根据上面代码，优先级高

spring:

　　datasource:

　　　　schema:

　　　　　　‐ classpath: department.sql

　　　　　　‐ classpath: user.sql

　　　　　　......　　

　　　　data:

　　　　　　‐ classpath: department_initData.sql

　　　　　　‐ classpath: user_initData.sql

　　　　　　......

　　自定义指定的SQL文件

---

经过测验，schema.sql 和schema-all.sql 在resources目录下并没有生效，有待继续查验

6. jdbcTemplate操作数据库

---

@Controller
@RequestMapping("/user")
public class UserController {

    @Autowired
    JdbcTemplate jdbcTemplate;

    @ResponseBody
    @RequestMapping("/getById2/{id}")
    public List<Map<String, Object>> selectByPrimaryKey2(@PathVariable Integer id){
　　　　　//这种query is OK
        List<Map<String, Object>> maps = jdbcTemplate.queryForList("SELECT * FROM USER");
        return maps;

        //以下几种方式都会产生error,error信息见下文：待查明
//        Object[] obj = new Object[1];
//        obj[0] = id;
//        return jdbcTemplate.queryForList("select * from user where id = ?", obj,User.class);
//        return jdbcTemplate.queryForList("SELECT * FROM USER", User.class);
//        return jdbcTemplate.queryForObject("select id,name,sex,age from user where id = " + id,User.class);
    }
}

org.springframework.jdbc.IncorrectResultSetColumnCountException: Incorrect column count: expected 1, actual 4
    at org.springframework.jdbc.core.SingleColumnRowMapper.mapRow(SingleColumnRowMapper.java:110) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:94) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:61) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate$1QueryStatementCallback.doInStatement(JdbcTemplate.java:440) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:376) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:452) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:462) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.queryForList(JdbcTemplate.java:485) ~[spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at com.everjiankang.cache.controller.UserController.selectByPrimaryKey2(UserController.java:53) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) ~[spring-webmvc-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.3.RELEASE.jar:5.1.3.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_181]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]