43

您好我正在尝试将 HikariCP 与 Spring 一起用于连接池。我正在使用 jdbcTempLate 和 JdbcdaoSupport。
这是我的数据源弹簧配置文件:

<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource">
    <property name="dataSourceClassName" value="oracle.jdbc.driver.OracleDriver"/>
    <property name="dataSource.url" value="jdbc:oracle:thin:@localhost:1521:XE"/>
    <property name="dataSource.user" value="username"/>
    <property name="dataSource.password" value="password"/>
</bean>

但不幸的是,正在生成以下错误消息:

Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.zaxxer.hikari.HikariDataSource]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.zaxxer.hikari.HikariDataSource.<init>()

谁能告诉我如何解决这个问题?

4

9 回答 9

36

你需要在你的 bean 配置上写这个结构(这是你的数据源):

<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
    <property name="poolName" value="springHikariCP" />
    <property name="connectionTestQuery" value="SELECT 1" />
    <property name="dataSourceClassName" value="${hibernate.dataSourceClassName}" />
    <property name="maximumPoolSize" value="${hibernate.hikari.maximumPoolSize}" />
    <property name="idleTimeout" value="${hibernate.hikari.idleTimeout}" />

    <property name="dataSourceProperties">
        <props>
            <prop key="url">${dataSource.url}</prop>
            <prop key="user">${dataSource.username}</prop>
            <prop key="password">${dataSource.password}</prop>
        </props>
    </property>
</bean>

<!-- HikariCP configuration -->
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
    <constructor-arg ref="hikariConfig" />
</bean>

这是我的例子,它正在工作。您只需将您的属性放在 hibernate.properties 上并在之前进行设置:

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>classpath:hibernate.properties</value>
        </list>
    </property>
</bean>

Obs.:版本是
log4j:1.2.16
springframework:3.1.4.RELEASE
HikariCP:1.4.0

属性文件(hibernate.properties):

hibernate.dataSourceClassName=oracle.jdbc.pool.OracleDataSource
hibernate.hikari.maximumPoolSize=10
hibernate.hikari.idleTimeout=30000
dataSource.url=jdbc:oracle:thin:@localhost:1521:xe
dataSource.username=admin
dataSource.password=
于 2014-07-01T00:08:40.567 回答
33

我的测试 java 配置(用于 MySql)

@Bean(destroyMethod = "close")
public DataSource dataSource(){
    HikariConfig hikariConfig = new HikariConfig();
    hikariConfig.setDriverClassName("com.mysql.jdbc.Driver");
    hikariConfig.setJdbcUrl("jdbc:mysql://localhost:3306/spring-test"); 
    hikariConfig.setUsername("root");
    hikariConfig.setPassword("admin");

    hikariConfig.setMaximumPoolSize(5);
    hikariConfig.setConnectionTestQuery("SELECT 1");
    hikariConfig.setPoolName("springHikariCP");

    hikariConfig.addDataSourceProperty("dataSource.cachePrepStmts", "true");
    hikariConfig.addDataSourceProperty("dataSource.prepStmtCacheSize", "250");
    hikariConfig.addDataSourceProperty("dataSource.prepStmtCacheSqlLimit", "2048");
    hikariConfig.addDataSourceProperty("dataSource.useServerPrepStmts", "true");

    HikariDataSource dataSource = new HikariDataSource(hikariConfig);

    return dataSource;
}
于 2015-03-05T19:01:09.713 回答
8

您可以在 servlet 上下文中创建一个数据源 bean,如下所示:

<beans:bean id="dataSource"
    class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
    <beans:property name="dataSourceClassName"
        value="com.mysql.jdbc.jdbc2.optional.MysqlDataSource" />
    <beans:property name="maximumPoolSize" value="5" />
    <beans:property name="maxLifetime" value="30000" />
    <beans:property name="idleTimeout" value="30000" />
    <beans:property name="dataSourceProperties">
        <beans:props>
            <beans:prop key="url">jdbc:mysql://localhost:3306/exampledb</beans:prop>
            <beans:prop key="user">root</beans:prop>
            <beans:prop key="password"></beans:prop>
            <beans:prop key="prepStmtCacheSize">250</beans:prop>
            <beans:prop key="prepStmtCacheSqlLimit">2048</beans:prop>
            <beans:prop key="cachePrepStmts">true</beans:prop>
            <beans:prop key="useServerPrepStmts">true</beans:prop>
        </beans:props>
    </beans:property>
</beans:bean>
于 2015-07-07T10:41:07.980 回答
4

使用 XML 配置,您的数据源应如下所示:

    <bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">  
      <property name="dataSourceProperties" >
        <props>
            <prop key="dataSource.url">jdbc:oracle:thin:@localhost:1521:XE</prop>
            <prop key="dataSource.user">username</prop>
            <prop key="dataSource.password">password</prop>
        </props>
      </property>  
      <property name="dataSourceClassName"   
                value="oracle.jdbc.driver.OracleDriver" />  
    </bean>  

    <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource">  
          <constructor-arg ref="hikariConfig" />  
    </bean>  

或者您可以完全跳过HikariConfigbean 并使用此处提到的方法

于 2014-04-19T16:42:15.890 回答
3

我最近从一个基于 Spring 和 Hibernate 的项目迁移C3P0HikariCP了,这并不像我想象的那么容易,在这里我分享我的发现。

这里Spring Boot查看我的答案

我有以下设置

  • 春天 4.3.8+
  • 冬眠 4.3.8+
  • 摇篮 2.x
  • PostgreSQL 9.5

下面的一些配置与上面的一些答案相似,但是存在差异。

摇篮的东西

为了拉入正确的罐子,我需要拉入以下罐子

//latest driver because *brettw* see https://github.com/pgjdbc/pgjdbc/pull/849
compile 'org.postgresql:postgresql:42.2.0'
compile('com.zaxxer:HikariCP:2.7.6') {
    //they are pulled in separately elsewhere
    exclude group: 'org.hibernate', module: 'hibernate-core'
}

// Recommended to use HikariCPConnectionProvider by Hibernate in 4.3.6+    
compile('org.hibernate:hibernate-hikaricp:4.3.8.Final') {
        //they are pulled in separately elsewhere, to avoid version conflicts
        exclude group: 'org.hibernate', module: 'hibernate-core'
        exclude group: 'com.zaxxer', module: 'HikariCP'
}

// Needed for HikariCP logging if you use log4j
compile('org.slf4j:slf4j-simple:1.7.25')  
compile('org.slf4j:slf4j-log4j12:1.7.25') {
    //log4j pulled in separately, exclude to avoid version conflict
    exclude group: 'log4j', module: 'log4j'
}

基于 Spring/Hibernate 的配置

为了让 Spring & Hibernate 使用 Hikari 连接池,您需要定义HikariDataSource并输入到sessionFactorybean 中,如下所示。

<!-- HikariCP Database bean -->
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
    <constructor-arg ref="hikariConfig" />
</bean>

<!-- HikariConfig config that is fed to above dataSource -->
<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
        <property name="poolName" value="SpringHikariPool" />
        <property name="dataSourceClassName" value="org.postgresql.ds.PGSimpleDataSource" />
        <property name="maximumPoolSize" value="20" />
        <property name="idleTimeout" value="30000" />

        <property name="dataSourceProperties">
            <props>
                <prop key="serverName">localhost</prop>
                <prop key="portNumber">5432</prop>
                <prop key="databaseName">dbname</prop>
                <prop key="user">dbuser</prop>
                <prop key="password">dbpassword</prop>
            </props>
        </property>
</bean>

<bean class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" id="sessionFactory">
        <!-- Your Hikari dataSource below -->
        <property name="dataSource" ref="dataSource"/>
        <!-- your other configs go here -->
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.connection.provider_class">org.hibernate.hikaricp.internal.HikariCPConnectionProvider</prop>
                <!-- Remaining props goes here -->
            </props>
        </property>
 </bean>

完成上述设置后,您需要添加一个条目log4j or logback并将其设置levelDEBUG查看Hikari连接池启动。

日志4j1.2

<!-- Keep additivity=false to avoid duplicate lines -->
<logger additivity="false" name="com.zaxxer.hikari">
    <level value="debug"/>
    <!-- Your appenders goes here -->
</logger>

回溯

通过application.propertiesSpring Boot

debug=true
logging.level.com.zaxxer.hikari.HikariConfig=DEBUG 

使用logback.xml

<logger name="com.zaxxer.hikari" level="DEBUG" additivity="false">
    <appender-ref ref="STDOUT" />
</logger>

有了以上内容,您应该一切顺利!显然,您需要自定义HikariCP池配置以获得它所承诺的性能。

于 2018-01-23T03:31:38.260 回答
2

最后一个错误是由未找到库 SLF4J 引起的。HikariCP 有两个依赖项:slf4j 和 javassist。顺便说一句,HikariDataSource确实有一个默认构造函数并且不需要 HikariConfig,请参阅此链接。所以这从来都不是问题。

于 2014-04-20T07:08:29.173 回答
1

可能这也可以帮助使用配置文件,如 java 类方式。

@Configuration
@PropertySource("classpath:application.properties")
public class DataSourceConfig {
    @Autowired
    JdbcConfigProperties jdbc;


    @Bean(name = "hikariDataSource")
    public DataSource hikariDataSource() {
        HikariConfig config = new HikariConfig();
        HikariDataSource dataSource;

        config.setJdbcUrl(jdbc.getUrl());
        config.setUsername(jdbc.getUser());
        config.setPassword(jdbc.getPassword());
        // optional: Property setting depends on database vendor
        config.addDataSourceProperty("cachePrepStmts", "true");
        config.addDataSourceProperty("prepStmtCacheSize", "250");
        config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
        dataSource = new HikariDataSource(config);

        return dataSource;
    }
}

如何使用它:

@Component
public class Car implements Runnable {
    private static final Logger logger = LoggerFactory.getLogger(AptSommering.class);


    @Autowired
    @Qualifier("hikariDataSource")
    private DataSource hikariDataSource;


}
于 2019-11-12T11:08:34.733 回答
1

我在http://www.baeldung.com/hikaricp找到了它,它可以工作。

你的 pom.xml

<dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP</artifactId>
            <version>2.6.3</version>
        </dependency>

你的 data.xml

<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
    <property name="driverClassName" value="${jdbc.driverClassName}"/>
    <property name="jdbcUrl" value="${jdbc.databaseurl}"/>
    <property name="username" value="${jdbc.username}"/>
    <property name="password" value="${jdbc.password}"/>
</bean>
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
    <constructor-arg ref="hikariConfig" />
</bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"
      p:dataSource-ref="dataSource"
/>

你的 jdbc.properties

jdbc.driverClassName=org.postgresql.Driver
jdbc.dialect=org.hibernate.dialect.PostgreSQL94Dialect
jdbc.databaseurl=jdbc:postgresql://localhost:5432/dev_db
jdbc.username=dev
jdbc.password=dev
于 2018-02-09T23:36:52.580 回答
0

对于 DB2,请尝试以下配置。

<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
    <property name="poolName" value="springHikariCP" />
    <property name="dataSourceClassName" value="com.ibm.db2.jcc.DB2SimpleDataSource"/>

    <property name="maximumPoolSize" value="${db.maxTotal}" />
    <property name="dataSourceProperties">
        <props>
            <prop key="driverType">4</prop>
            <prop key="serverName">192.168.xxx.xxx</prop>
            <prop key="databaseName">dbname</prop>
            <prop key="portNumber">50000</prop>
            <prop key="user">db2inst1</prop>
            <prop key="password">password</prop>
        </props>
    </property>

    <property name="jdbcUrl" value="${db.url}" />
    <property name="username" value="${db.username}" />
    <property name="password" value="${db.password}" />
</bean>
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
    <constructor-arg ref="hikariConfig" />
</bean>
于 2018-07-03T07:30:49.520 回答