Question

我在Grails 2.5.1中配置多个DataSource时遇到问题。我正在使用PostgreSQL 9.4.4，H2DB和hibernate 4.3.10与GGTS。我找不到“桌子”XX“; SQL语句...'消息，在使用控制台进行调试后，我发现Session正在返回错误的驱动程序：

import teste.PTes;

    PTes.withSession { hibernateSession ->
hibernateSession.getJdbcConnectionAccess().obtainConnection().getMetaData().getDriverName()
}

Result: H2 JDBC Driver

这个域类应该在使用PostgreSQL驱动程序的Session上运行。这是DataSource

    dataSource {
        pooled = true
        jmxExport = true
        driverClassName = "org.h2.Driver"

        username = "sa"
        password = ""
    }

hibernate {
    cache.use_second_level_cache = true
    cache.use_query_cache=true
    cache.region.factory_class = 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory' // Hibernate 4
    }

// environment specific settings
environments {
    development {
         dataSource {
            dbCreate = "create-drop" // one of 'create', 'create-drop', 'update', 'validate', ''
            url = "jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE"
            logSql = true
        }
        dataSource_teste {
            pooled = true
            dialect="org.hibernate.dialect.PostgreSQLDialect"
            driverClassName: 'org.postgresql.Driver'

            username: 'teste'
            password: 'teste'
            url: 'jdbc:postgresql://localhost:5432/teste'
            dbCreate: 'validate'
        }
    }
    test {
        dataSource {
            dbCreate = 'create-drop'
            url = "jdbc:postgresql://localhost:5432/teste;DB_CLOSE_ON_EXIT=FALSE"
        }
    }
    production {
        dataSource {
            dbCreate = "update"
            url = "jdbc:h2:prodDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE"
            properties {
               // See http://grails.org/doc/latest/guide/conf.html#dataSource for documentation
               jmxEnabled = true
               initialSize = 5
               maxActive = 50
               minIdle = 5
               maxIdle = 25
               maxWait = 10000
               maxAge = 10 * 60000
               timeBetweenEvictionRunsMillis = 5000
               minEvictableIdleTimeMillis = 60000
               validationQuery = "SELECT 1"
               validationQueryTimeout = 3
               validationInterval = 15000
               testOnBorrow = true
               testWhileIdle = true
               testOnReturn = false
               jdbcInterceptors = "ConnectionState"
               defaultTransactionIsolation = java.sql.Connection.TRANSACTION_READ_COMMITTED
            }
        }
        dataSource_teste {
            dialect: org.hibernate.dialect.PostgreSQL82Dialect
            driverClassName: 'org.postgresql.Driver'
            username: 'teste'
            password: 'teste'
            url: 'jdbc:postgresql://localhost:5432/teste;DB_CLOSE_ON_EXIT=FALSE'
            dbCreate: 'update'
        }
    }
}

这是BuildConfig：

    grails.servlet.version = "3.0" // Change depending on target container compliance (2.5 or 3.0)
grails.project.class.dir = "target/classes"
grails.project.test.class.dir = "target/test-classes"
grails.project.test.reports.dir = "target/test-reports"
grails.project.work.dir = "target/work"
grails.project.target.level = 1.6
grails.project.source.level = 1.6
//grails.project.war.file = "target/${appName}-${appVersion}.war"

grails.project.fork = [
    // configure settings for compilation JVM, note that if you alter the Groovy version forked compilation is required
    //  compile: [maxMemory: 256, minMemory: 64, debug: false, maxPerm: 256, daemon:true],

    // configure settings for the test-app JVM, uses the daemon by default
    test: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256, daemon:true],
    // configure settings for the run-app JVM
    run: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256, forkReserve:false],
    // configure settings for the run-war JVM
    war: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256, forkReserve:false],
    // configure settings for the Console UI JVM
    console: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256]
]

grails.project.dependency.resolver = "maven" // or ivy
grails.project.dependency.resolution = {
    // inherit Grails' default dependencies
    inherits("global") {
        // specify dependency exclusions here; for example, uncomment this to disable ehcache:
        // excludes 'ehcache'
    }
    log "error" // log level of Ivy resolver, either 'error', 'warn', 'info', 'debug' or 'verbose'
    checksums true // Whether to verify checksums on resolve
    legacyResolve false // whether to do a secondary resolve on plugin installation, not advised and here for backwards compatibility

    repositories {
        inherits true // Whether to inherit repository definitions from plugins

        grailsPlugins()
        grailsHome()
        mavenLocal()
        grailsCentral()
        mavenCentral()
        // uncomment these (or add new ones) to enable remote dependency resolution from public Maven repositories
        //mavenRepo "http://repository.codehaus.org"
        mavenRepo "http://download.java.net/maven/2/"

        //repo for spring security
        mavenRepo "http://repo.spring.io/milestone/"
        //mavenRepo "http://repository.jboss.com/maven2/"
    }

    dependencies {
        // specify dependencies here under either 'build', 'compile', 'runtime', 'test' or 'provided' scopes e.g.
        // runtime 'mysql:mysql-connector-java:5.1.29'
        runtime 'org.postgresql:postgresql:9.4-1201-jdbc4'
        test "org.grails:grails-datastore-test-support:1.0.2-grails-2.4"
    }

    plugins {
        // plugins for the build system only
        build ":tomcat:7.0.55.3" // or ":tomcat:8.0.22"

        // plugins for the compile step
        compile ":scaffolding:2.1.2"
        compile ':cache:1.1.8'
        // asset-pipeline 2.0+ requires Java 7, use version 1.9.x with Java 6
        compile ":asset-pipeline:2.2.3"
        compile ":quartz:1.0.2"
        compile ":joda-time:1.5"
        compile ":XXXXXXX-plugin:0.1-SNAPSHOT"

        // plugins needed at runtime but not for compilation
        runtime ":hibernate4:4.3.10"  // or ":hibernate:3.6.10.18"
        runtime ":database-migration:1.4.0"
        runtime ":jquery:1.11.1"

        // Uncomment these to enable additional asset-pipeline capabilities
        //compile ":sass-asset-pipeline:1.9.0"
        //compile ":less-asset-pipeline:1.10.0"
        //compile ":coffee-asset-pipeline:1.8.0"
        //compile ":handlebars-asset-pipeline:1.3.0.3"
    }
}

以下是域类中使用的映射：

  static mapping = { 
        datasource 'teste'
        table 'cd_pt'
        id name: 'codPTes'
        codPTes column: 'cod_p'
    }

任何人都有线索？

Answer 1

通过使用PSQL作为主DB而H2作为辅助DB来实现此功能。仍然不知道为什么或者DataSource在配置中有错误（我已经花了3个星期，但肯定有可能）。

多个数据源配置

1 个答案: