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JDBCドライバが見つかりません

2017-09-01 12 views
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データベースにクエリを持つBirtレポートを使用しています。データベースへのアクセスはJDBCを経由します。この場合JDBCドライバが見つかりません

сен 01, 2017 10:54:36 AM org.eclipse.birt.data.engine.odaconsumer.Driver createNewDriverHelper(Map) 
SEVERE: Cannot get ODA data source driver helper. 
org.eclipse.datatools.connectivity.oda.consumer.helper.OdaHelperException: Unable to load or instantiate the custom ODA driver class. (org.eclipse.birt.report.data.oda.jdbc.OdaJdbcDriver) ; 
org.eclipse.datatools.connectivity.oda.OdaException ; 
    java.lang.ClassNotFoundException: org.eclipse.birt.report.data.oda.jdbc.OdaJdbcDriver 
    at org.eclipse.datatools.connectivity.oda.consumer.helper.OdaDriver.loadDriverInstance(OdaDriver.java:251) 
    at org.eclipse.datatools.connectivity.oda.consumer.helper.OdaDriver.init(OdaDriver.java:198) 
    at org.eclipse.datatools.connectivity.oda.consumer.helper.OdaDriver.<init>(OdaDriver.java:113) 
    at org.eclipse.birt.data.engine.odaconsumer.Driver.createNewDriverHelper(Driver.java:99) 
    at org.eclipse.birt.data.engine.odaconsumer.DriverManager.getDriverHelper(DriverManager.java:115) 
    at org.eclipse.birt.data.engine.odaconsumer.DriverManager.getNewDriverHelper(DriverManager.java:101) 
    at org.eclipse.birt.data.engine.odaconsumer.ConnectionManager.openConnection(ConnectionManager.java:150) 
    at org.eclipse.birt.data.engine.executor.DataSource.newConnection(DataSource.java:224) 
    at org.eclipse.birt.data.engine.executor.DataSource.open(DataSource.java:212) 
    at org.eclipse.birt.data.engine.impl.DataSourceRuntime.openOdiDataSource(DataSourceRuntime.java:217) 
    at org.eclipse.birt.data.engine.impl.QueryExecutor.openDataSource(QueryExecutor.java:437) 
    at org.eclipse.birt.data.engine.impl.QueryExecutor.prepareExecution(QueryExecutor.java:325) 
    at org.eclipse.birt.data.engine.impl.PreparedQuery.doPrepare(PreparedQuery.java:463) 
    at org.eclipse.birt.data.engine.impl.PreparedDataSourceQuery.produceQueryResults(PreparedDataSourceQuery.java:190) 
    at org.eclipse.birt.data.engine.impl.PreparedDataSourceQuery.execute(PreparedDataSourceQuery.java:178) 
    at org.eclipse.birt.data.engine.impl.PreparedOdaDSQuery.execute(PreparedOdaDSQuery.java:179) 
    at org.eclipse.birt.report.data.adapter.impl.DataRequestSessionImpl.execute(DataRequestSessionImpl.java:651) 
    at org.eclipse.birt.report.engine.data.dte.DteDataEngine.doExecuteQuery(DteDataEngine.java:152) 
    at org.eclipse.birt.report.engine.data.dte.AbstractDataEngine.execute(AbstractDataEngine.java:286) 
    at org.eclipse.birt.report.engine.executor.ExecutionContext.executeQuery(ExecutionContext.java:1947) 
    at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:80) 
    at org.eclipse.birt.report.engine.executor.DynamicTextItemExecutor.execute(DynamicTextItemExecutor.java:77) 
    at org.eclipse.birt.report.engine.internal.executor.dup.SuppressDuplicateItemExecutor.execute(SuppressDuplicateItemExecutor.java:43) 
    at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportItemExecutor.execute(WrappedReportItemExecutor.java:46) 
    at org.eclipse.birt.report.engine.internal.executor.l18n.LocalizedReportItemExecutor.execute(LocalizedReportItemExecutor.java:34) 
    at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:65) 
    at org.eclipse.birt.report.engine.layout.html.HTMLPageLM.layout(HTMLPageLM.java:92) 
    at org.eclipse.birt.report.engine.layout.html.HTMLReportLayoutEngine.layout(HTMLReportLayoutEngine.java:100) 
    at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.doRun(RunAndRenderTask.java:181) 
    at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:77) 
    at Birt4Py.executeReport(Birt4Py.java:90) 
    at EntryPoint.getStack(EntryPoint.java:18) 
    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 py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244) 
    at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357) 
    at py4j.Gateway.invoke(Gateway.java:280) 
    at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132) 
    at py4j.commands.CallCommand.execute(CallCommand.java:79) 
    at py4j.GatewayConnection.run(GatewayConnection.java:214) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: org.eclipse.datatools.connectivity.oda.OdaException ; 
    java.lang.ClassNotFoundException: org.eclipse.birt.report.data.oda.jdbc.OdaJdbcDriver 
    at org.eclipse.datatools.connectivity.oda.consumer.helper.DriverExtensionHelper.loadDriverClass(DriverExtensionHelper.java:134) 
    at org.eclipse.datatools.connectivity.oda.consumer.helper.OdaDriver.loadDriverInstance(OdaDriver.java:224) 
    ... 42 more 
Caused by: java.lang.ClassNotFoundException: org.eclipse.birt.report.data.oda.jdbc.OdaJdbcDriver 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:264) 
    at org.eclipse.datatools.connectivity.oda.consumer.helper.DriverExtensionHelper.loadDriverClass(DriverExtensionHelper.java:130) 
    ... 43 more

は、レポート自体が作成され、データベースからのデータはない：レポートを生成する場合

は、次のエラーが発生します。

私はこれまで何をやったか：

1）ダウンロードしたバートフレームワーク4.6.0およびBIRT Runtimeリリース（http://download.eclipse.org/birt/downloads/）
2）ダウンロードしたPostgreSQLのJDBC 4.2ドライバー、42.1.4（https://jdbc.postgresql.org/）
2）ディレクトリは/ usr/libに/ JVM/javaの-8-オラクル/ JRE/libに/ extにライブラリ

  • コモンズ-IO-2.5.jar （に追加）
  • py4j0.10.4.jar
  • BIRT RuntimeリリースとバートフレームワークJDBCドライバ（postgresqlの-42.1.4.jarと
  • 瓶）

4）からのすべてのjarファイルのコンパイルされたJavaファイル

javac Birt4Py.java 
javac EntryPoint.java

5）発売バート：

java EntryPoint

6）発売main.py

コード：

.rptdesign：

<?xml version="1.0" encoding="UTF-8"?> 
<report xmlns="http://www.eclipse.org/birt/2005/design" version="3.2.23" id="1"> 
    <property name="createdBy">Eclipse BIRT Designer Version 4.6.0.v201606072122</property> 
    <property name="units">in</property> 
    <property name="iconFile">/templates/blank_report.gif</property> 
    <property name="bidiLayoutOrientation">ltr</property> 
    <property name="imageDPI">96</property> 
    <data-sources> 
     <oda-data-source extensionID="org.eclipse.birt.report.data.oda.jdbc" name="Data Source" id="4"> 
      <list-property name="privateDriverProperties"> 
       <ex-property> 
        <name>metadataBidiFormatStr</name> 
        <value>ILYNN</value> 
       </ex-property> 
       <ex-property> 
        <name>disabledMetadataBidiFormatStr</name> 
       </ex-property> 
       <ex-property> 
        <name>contentBidiFormatStr</name> 
        <value>ILYNN</value> 
       </ex-property> 
       <ex-property> 
        <name>disabledContentBidiFormatStr</name> 
       </ex-property> 
      </list-property> 
      <property name="odaDriverClass">org.postgresql.Driver</property> 
      <property name="odaURL">jdbc:postgresql://192.168.69.128:5432/expert</property> 
      <property name="odaUser">visitor1</property> 
      <encrypted-property name="odaPassword" encryptionID="base64">cXdlcnR5MTIz</encrypted-property> 
     </oda-data-source> 
    </data-sources> 
    <data-sets> 
     <oda-data-set extensionID="org.eclipse.birt.report.data.oda.jdbc.JdbcSelectDataSet" name="MyDS" id="5"> 
      <list-property name="columnHints"> 
       <structure> 
        <property name="columnName">c</property> 
        <text-property name="displayName">c</text-property> 
        <text-property name="heading">c</text-property> 
       </structure> 
      </list-property> 
      <structure name="cachedMetaData"> 
       <list-property name="resultSet"> 
        <structure> 
         <property name="position">1</property> 
         <property name="name">c</property> 
         <property name="dataType">decimal</property> 
        </structure> 
       </list-property> 
      </structure> 
      <property name="dataSource">Data Source</property> 
      <list-property name="resultSet"> 
       <structure> 
        <property name="position">1</property> 
        <property name="name">c</property> 
        <property name="nativeName">c</property> 
        <property name="dataType">decimal</property> 
        <property name="nativeDataType">-5</property> 
       </structure> 
      </list-property> 
      <xml-property name="queryText"><![CDATA[select SUM(34) as c 
]]></xml-property> 
      <xml-property name="designerValues"><![CDATA[<?xml version="1.0" encoding="UTF-8"?> 
<model:DesignValues xmlns:design="http://www.eclipse.org/datatools/connectivity/oda/design" xmlns:model="http://www.eclipse.org/birt/report/model/adapter/odaModel"> 
    <Version>2.0</Version> 
    <design:ResultSets derivedMetaData="true"> 
    <design:resultSetDefinitions> 
     <design:resultSetColumns> 
     <design:resultColumnDefinitions> 
      <design:attributes> 
      <design:identifier> 
       <design:name>c</design:name> 
       <design:position>1</design:position> 
      </design:identifier> 
      <design:nativeDataTypeCode>-5</design:nativeDataTypeCode> 
      <design:precision>19</design:precision> 
      <design:scale>0</design:scale> 
      <design:nullability>Unknown</design:nullability> 
      <design:uiHints> 
       <design:displayName>c</design:displayName> 
      </design:uiHints> 
      </design:attributes> 
      <design:usageHints> 
      <design:label>c</design:label> 
      <design:formattingHints> 
       <design:displaySize>20</design:displaySize> 
      </design:formattingHints> 
      </design:usageHints> 
     </design:resultColumnDefinitions> 
     </design:resultSetColumns> 
     <design:criteria/> 
    </design:resultSetDefinitions> 
    </design:ResultSets> 
</model:DesignValues>]]></xml-property> 
     </oda-data-set> 
    </data-sets> 
    <page-setup> 
     <simple-master-page name="Simple MasterPage" id="2"> 
      <page-footer> 
       <text id="3"> 
        <property name="contentType">html</property> 
        <text-property name="content"><![CDATA[<value-of>new Date()</value-of>]]></text-property> 
       </text> 
      </page-footer> 
     </simple-master-page> 
    </page-setup> 
    <body> 
     <text-data id="6"> 
      <property name="dataSet">MyDS</property> 
      <list-property name="boundDataColumns"> 
       <structure> 
        <property name="name">c</property> 
        <text-property name="displayName">c</text-property> 
        <expression name="expression" type="javascript">dataSetRow["c"]</expression> 
        <property name="dataType">decimal</property> 
       </structure> 
      </list-property> 
      <expression name="valueExpr">row['c'];</expression> 
      <property name="contentType">html</property> 
     </text-data> 
    </body> 
</report>

Birt4py.java

import org.apache.commons.io.output.ByteArrayOutputStream; 
import org.eclipse.birt.core.exception.BirtException; 
import org.eclipse.birt.core.framework.Platform; 
import org.eclipse.birt.report.engine.api.EngineConfig; 
import org.eclipse.birt.report.engine.api.EngineException; 
import org.eclipse.birt.report.engine.api.HTMLRenderOption; 
import org.eclipse.birt.report.engine.api.DocxRenderOption; 
import org.eclipse.birt.report.engine.api.RenderOption; 
import org.eclipse.birt.report.engine.api.EXCELRenderOption; 
import org.eclipse.birt.report.engine.api.HTMLServerImageHandler; 
import org.eclipse.birt.report.engine.api.IReportEngine; 
import org.eclipse.birt.report.engine.api.IReportEngineFactory; 
import org.eclipse.birt.report.engine.api.IReportRunnable; 
import org.eclipse.birt.report.engine.api.IRunAndRenderTask; 
import org.eclipse.birt.report.model.api.SessionHandle; 
import java.io.FileWriter; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.logging.Level; 
import java.util.HashMap; 
import java.io.*; 
import java.net.URL; 


public class Birt4Py { 

     private static String report; 
     private static IReportEngine engine = null; 
     private static EngineConfig config = null; 

     public static String getReport() { 
     return report; 
     } 

     public Birt4Py() throws BirtException { 
      // start up Platform 
      config = new EngineConfig(); 

      Platform.startup(config); 

      // create new Report Engine 
      IReportEngineFactory factory = (IReportEngineFactory) Platform.createFactoryObject(IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY); 
      engine = factory.createReportEngine(config); 
     } 

     public void executeReport(ArrayList<String> params) throws EngineException { 
      /* 
      Params are passed through the /sirenaApp/data_helpers/report_extractor -> get_report_file() -> my_list: 
       1st: .rptdesign full path -> String 
       2nd: report file full path -> String 
       3rd: report extension -> String 

      */ 

      // open the report design 
      IReportRunnable design = null; 
      System.out.println(params); 
      design = engine.openReportDesign(params.get(0)); 

      // create RunandRender Task 
      IRunAndRenderTask task = engine.createRunAndRenderTask(design); 

      // pass necessary parameters 
      task.validateParameters(); 

      // set render options including output type 
      RenderOption options; 
      if (params.get(2) == "doc") { 
      options = new RenderOption(); 
      } 
      else if (params.get(2) == "xls") { 
      options = new EXCELRenderOption(); 
      } 
      else { 
      options = new HTMLRenderOption(); 
      } 

      ByteArrayOutputStream outs = new ByteArrayOutputStream(); 
      options.setOutputStream(outs); 
      options.setImageHandler(new HTMLServerImageHandler()); 

      options.setOutputFileName(params.get(1)); 
      options.setOutputFormat(params.get(2)); 
      task.setRenderOption(options); 

      String output; 
      task.run(); 
      output = outs.toString(); 
      task.close(); 
      report = output; 

      System.out.println(report); 

     } 
}

EntryPoint.java

import org.eclipse.birt.core.exception.BirtException; 
import org.eclipse.birt.report.engine.api.EngineException; 

import py4j.GatewayServer; 
import java.util.ArrayList; 
import java.util.List; 

public class EntryPoint { 
    private Birt4Py birt; 

    public EntryPoint() throws BirtException { 
     birt = new Birt4Py(); 

    } 

    public Birt4Py getStack(ArrayList<String> params) throws EngineException { 

     birt.executeReport(params); 
     return birt; 
    } 

    public static void main(String[] args) throws BirtException { 
     GatewayServer gatewayServer = new GatewayServer(new EntryPoint()); 
     gatewayServer.start(); 
     System.out.println("Birt4Py listener started!"); 
    } 
}

main.py

# -*- coding: utf-8 -*- 

import os 
from py4j.java_gateway import JavaGateway, GatewayParameters 

BIRT_PORT = 25333 
BIRT_HOST = '127.0.0.1' 


class BirtReport(object): 

    def __init__(self, rptdesign_name, rptdesign_path): 

     self.rptdesign_path = rptdesign_path 
     self.rptdesign_name = rptdesign_name 

    def get_report_file(self, ext, filename): 
     """ 
     :param ext: str - file extension, i.e. .doc, .xls 
     :param filename: str - filename 
     :return: str - filename with extension of the resulting report 
     """ 

     # Params passed to the Birt4Py.java report executor: 
     # 1st: .rptdesign full path -> String 
     # 2nd: report file full path -> String 
     # 3rd: report extension -> String 

     filepath = self.rptdesign_path + filename + '.' + ext 
     my_list = [self.rptdesign_path + self.rptdesign_name, filepath, ext] 

     try: 
      gateway = JavaGateway(gateway_parameters=GatewayParameters(auto_convert=True, 
                     auto_field=True, 
                     port=BIRT_PORT, 
                     address=BIRT_HOST)) 
      gateway.entry_point.getStack(my_list) 
     except Exception: 
      raise 

     return filepath 


if __name__ == '__main__': 
    rptdesign_name = 'jdbc_test.rptdesign' 
    rptdesign_path = os.path.dirname(os.path.abspath(__file__)) + '/' 

    birt_report = BirtReport(rptdesign_name, rptdesign_path) 

    generated_file = birt_report.get_report_file('docx', 'GenerateDocxFile') 
    print(generated_file)

質問：どのように私は、JDBCドライバは、バートと一緒に動作するのですか？
私のテストプロジェクトは、hereからダウンロードできます。

出典

2017-09-01 NorthCat

答えて

0

ありがとうございましたRamiz、私は問題を解決しました。フォルダが見つかりました

org.eclipse.birt.report.data.oda.jdbc_4.6.0。コピーされた中で

は/ usr/libに/ JVM/javaの-8-オラクル/ JRE/libに/ extに

でv201606072122 Eclipseで

し、そこからコピーされたすべてのライブラリファイルはでしたoda-jdbc.jar、不在のクラスがありましたOdaJdbcDriver

出典

2017-09-01 13:15:27 NorthCat

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