Question

我尝试使用jdk 1.7在Tomcat 7上运行Scada-Lts，我收到以下错误：

SEVERE: Exception sending context initialized event to listener instance of class com.serotonin.mango.MangoContextListener
java.lang.IllegalArgumentException: No DataSource specified
at org.springframework.util.Assert.notNull(Assert.java:115)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:97)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:382)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:428)
at com.serotonin.mango.db.MySQLAccess.newDatabaseCheck(MySQLAccess.java:76)
at com.serotonin.mango.db.DatabaseAccess.initialize(DatabaseAccess.java:118)
at com.serotonin.mango.MangoContextListener.databaseInitialize(MangoContextListener.java:391)
at com.serotonin.mango.MangoContextListener.contextInitialized(MangoContextListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5118)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5634)

Answer 1

您应该在context.xml（配置文件tomcat7）中设置与数据库的连接，如下例所示。

您应该将文件：“mysql-connector-java-5.1.38-bin.jar”，“mysql-connector-java-3.1.8-bin.jar”复制到目录“./tomcat7/lib”

配置文件context.xml的示例：

<?xml version="1.0" encoding="UTF-8"?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
--><!-- The contents of this file will be loaded for each web application --><Context>

    <!-- Default set of monitored resources -->
    <WatchedResource>WEB-INF/web.xml</WatchedResource>

    <Resource name="jdbc/scadalts"
          auth="Container"
          type="javax.sql.DataSource"
          factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
          testWhileIdle="true"
          testOnBorrow="true"
          testOnReturn="false"
          validationQuery="SELECT 1"
          validationInterval="30000"
          timeBetweenEvictionRunsMillis="30000"
          maxActive="80"
          minIdle="10"
          maxWait="10000"
          initialSize="10"
          removeAbandonedTimeout="1000"
          removeAbandoned="true"
          abandonWhenPercentageFull="75"
          logAbandoned="true"
          minEvictableIdleTimeMillis="30000"
          jmxEnabled="true"
          jdbcInterceptors="org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;
                                                        org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer;
                                                        org.apache.tomcat.jdbc.pool.interceptor.ResetAbandonedTimer;
                                                        org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport(threshold=1500)"
          username="root"
          password="root"
          driverClassName="com.mysql.jdbc.Driver"
          defaultTransactionIsolation="READ_COMMITTED"
          url="jdbc:mysql://localhost:3306/scadalts"
         />

    <!-- Uncomment this to disable session persistence across Tomcat restarts -->
    <!--
    <Manager pathname="" />
    -->

    <!-- Uncomment this to enable Comet connection tacking (provides events
         on session expiration as well as webapp lifecycle) -->
    <!--
    <Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />
    -->

</Context>

它应该有用。

在上面的配置软件中，需要服务器安装MySql数据库“scadalts”和root用户在localhost上使用密码root。

Scada-Lts - 'No DataSource指定'错误

1 个答案: