如何将Excel电子表格configuration为javax.sql.DataSource？
我有一个需要使用Excel作为数据源的Spring Boot 1.3.0（Java 8）应用程序。 （由于Excel文件的types，POI和JXL不起作用）应用程序需要在unix环境下运行。 我有应用程序configuration为通过一个YML文件设置数据源url和驱动程序类名称。
是否有可以使用Excel作为数据源的驱动程序（最好在Maven回购中提供）？ 我应该为url指定什么值？
编辑
以下是试图将Excel电子表格用作javax.sql.DataSource的代码：
SRC /主/资源/ application.yml
--- spring: profiles: active: development --- spring: profiles: development datasource: url: jdbc:odbc:Driver={Microsoft Excel Driver (*.xls)};DBQ=C:/dev/testproj/src/main/resources/test.xls driver-class-name: sun.jdbc.odbc.JdbcOdbcDriver 的src / main / JAVA / COM /testing/ TestApplication.java
package com.test; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class TestApplication { public static void main(String[] args) { SpringApplication.run(TestApplication.class, args); } }
的src /主/ JAVA / COM /testing/批次/ BatchConfiguration.java
package com.test.batch; import java.sql.ResultSet; import java.sql.SQLException; import java.util.List; import javax.sql.DataSource; import org.springframework.batch.core.Job; import org.springframework.batch.core.Step; import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing; import org.springframework.batch.core.configuration.annotation.JobBuilderFactory; import org.springframework.batch.core.configuration.annotation.StepBuilderFactory; import org.springframework.batch.core.launch.support.RunIdIncrementer; import org.springframework.batch.item.ItemProcessor; import org.springframework.batch.item.ItemReader; import org.springframework.batch.item.ItemWriter; import org.springframework.batch.item.database.JdbcCursorItemReader; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.jdbc.core.RowMapper; @Configuration @EnableBatchProcessing public class BatchConfiguration { @Bean public ItemReader<String> reader(DataSource dataSource) { JdbcCursorItemReader<String> itemReader = new JdbcCursorItemReader<String>(); itemReader.setDataSource(dataSource); System.out.println(dataSource); itemReader.setSql("SELECT a from Sheet1"); itemReader.setRowMapper(new RowMapper<String>() { public String mapRow(ResultSet rs, int rowNum) throws SQLException { String here= rs.getString(0); System.out.println(here); return here; } }); return itemReader; } @Bean public ItemProcessor<String, String> processor() { return new ItemProcessor<String, String>() { public String process(final String data) throws Exception { return data; } }; } @Bean public ItemWriter<String> writer(DataSource dataSource) { return new ItemWriter<String>() { public void write(List<? extends String> items) throws Exception { } }; } @Bean public Step step(StepBuilderFactory stepBuilderFactory, ItemReader<String> reader, ItemProcessor<String, String> processor, ItemWriter<String> writer) { return stepBuilderFactory.get("step") .<String, String> chunk(1) .reader(reader) .processor(processor) .writer(writer) .build(); } @Bean public Job importUserJob(JobBuilderFactory jobs, Step step) { return jobs.get("importUserJob") .incrementer(new RunIdIncrementer()) .flow(step) .end() .build(); } }
的build.gradle
buildscript { ext { springBootVersion = '1.3.0.RELEASE' } repositories { mavenCentral() } dependencies { classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") } } apply plugin: 'java' apply plugin: 'eclipse' apply plugin: 'spring-boot' jar { baseName = 'test-load' version = '1.0' } sourceCompatibility = 1.8 targetCompatibility = 1.8 repositories { mavenCentral() } dependencies { compile('org.springframework.boot:spring-boot-starter-batch') compile('org.springframework.boot:spring-boot-starter-integration') testCompile('org.springframework.boot:spring-boot-starter-test') } eclipse { classpath { containers.remove('org.eclipse.jdt.launching.JRE_CONTAINER') containers 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8' } } task wrapper(type: Wrapper) { gradleVersion = '2.9' } tasks.withType(Test) { scanForTestClasses = false include "**/*Test.class" }
执行gradle任务bootRun时会出现以下错误：
2015-12-28 16:01:18.530 ERROR 1356 --- [ main] osbatch.core.step.AbstractStep : Encountered an error executing step step in job importUserJob org.springframework.batch.item.ItemStreamException: Failed to initialize the reader at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:147) ~[spring-batch-infrastructure-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:96) ~[spring-batch-infrastructure-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.step.tasklet.TaskletStep.open(TaskletStep.java:310) ~[spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:197) ~[spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:67) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:169) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:134) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:306) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:135) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50) [spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:128) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_66] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_66] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_66] at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_66] at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302) [spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) [spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) [spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) [spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) [spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208) [spring-aop-4.2.3.RELEASE.jar:4.2.3.RELEASE] at com.sun.proxy.$Proxy45.run(Unknown Source) [na:na] at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.execute(JobLauncherCommandLineRunner.java:215) [spring-boot-autoconfigure-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.executeLocalJobs(JobLauncherCommandLineRunner.java:232) [spring-boot-autoconfigure-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.launchJobFromProperties(JobLauncherCommandLineRunner.java:124) [spring-boot-autoconfigure-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.run(JobLauncherCommandLineRunner.java:118) [spring-boot-autoconfigure-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:792) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:776) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:763) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:356) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:295) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1112) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1101) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE] at com.test.TestApplication.main(TestApplication.java:10) [bin/:na] Caused by: org.springframework.jdbc.BadSqlGrammarException: Executing query; bad SQL grammar [SELECT a from Sheet1]; nested exception is java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: SHEET1 at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:91) ~[spring-jdbc-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73) ~[spring-jdbc-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) ~[spring-jdbc-4.2.3.RELEASE.jar:4.2.3.RELEASE] at org.springframework.batch.item.database.JdbcCursorItemReader.openCursor(JdbcCursorItemReader.java:131) ~[spring-batch-infrastructure-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.item.database.AbstractCursorItemReader.doOpen(AbstractCursorItemReader.java:406) ~[spring-batch-infrastructure-3.0.5.RELEASE.jar:3.0.5.RELEASE] at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:144) ~[spring-batch-infrastructure-3.0.5.RELEASE.jar:3.0.5.RELEASE] ... 36 common frames omitted Caused by: java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: SHEET1 at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.springframework.batch.item.database.JdbcCursorItemReader.openCursor(JdbcCursorItemReader.java:120) ~[spring-batch-infrastructure-3.0.5.RELEASE.jar:3.0.5.RELEASE] ... 38 common frames omitted Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found: SHEET1 at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.readTableName(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.readTableOrSubquery(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadTableReference(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadFromClause(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadTableExpression(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadQuerySpecification(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadSimpleTable(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadQueryPrimary(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadQueryTerm(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadQueryExpressionBody(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.XreadQueryExpression(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserCommand.compilePart(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.ParserCommand.compileStatement(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.Session.compileStatement(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.StatementManager.compile(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3] at org.hsqldb.Session.execute(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
对于Excel文件c：/temp/test1.xlsx和'表'abc。 你必须用这种forms写出驱动程序的名字！
对于Java8，您需要将jre7中的所有sun软件包从jre7 bin文件夹复制到新的jar文件和JdbcOdbc.dll中。
import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class JDBCExcelConnection { public static void main(String[] args) { Connection connection = null; Statement statement = null; ResultSet resultSet = null; try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); connection = DriverManager .getConnection("jdbc:odbc:Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};DBQ=c:\\Temp\\test1.xlsx;readOnly=false"); statement = connection.createStatement(); resultSet = statement.executeQuery("SELECT * FROM [abc$]"); } catch (ClassNotFoundException e) { System.err.println("ClassNotFoundException by driver load - " + e); } catch (SQLException e) { System.err.println("SQLException by connect - " + e); } finally { if (connection != null) { try { connection.close(); } catch (Exception e) { } } if (statement != null) { try { statement.close(); } catch (Exception e) { } } if (resultSet != null) { try { resultSet.close(); } catch (Exception e) { } } } } }
您需要一个ODBC桥来从Excel读取。 P租赁看看下面的示例： http : //www.java2s.com/Tutorial/Java/0340__Database/UseJDBCODBCbridgetoreadfromExcel.htm
如果您想使用Excel作为您的数据源，请使用Apache POI。
这是一个如何使用它的例子
/** * This example shows how to use the event API for reading a file. */ public class EventExample implements HSSFListener { private SSTRecord sstrec; /** * This method listens for incoming records and handles them as required. * @param record The record that was found while reading. */ public void processRecord(Record record) { switch (record.getSid()) { // the BOFRecord can represent either the beginning of a sheet or the workbook case BOFRecord.sid: BOFRecord bof = (BOFRecord) record; if (bof.getType() == bof.TYPE_WORKBOOK) { System.out.println("Encountered workbook"); // assigned to the class level member } else if (bof.getType() == bof.TYPE_WORKSHEET) { System.out.println("Encountered sheet reference"); } break; case BoundSheetRecord.sid: BoundSheetRecord bsr = (BoundSheetRecord) record; System.out.println("New sheet named: " + bsr.getSheetname()); break; case RowRecord.sid: RowRecord rowrec = (RowRecord) record; System.out.println("Row found, first column at " + rowrec.getFirstCol() + " last column at " + rowrec.getLastCol()); break; case NumberRecord.sid: NumberRecord numrec = (NumberRecord) record; System.out.println("Cell found with value " + numrec.getValue() + " at row " + numrec.getRow() + " and column " + numrec.getColumn()); break; // SSTRecords store a array of unique strings used in Excel. case SSTRecord.sid: sstrec = (SSTRecord) record; for (int k = 0; k < sstrec.getNumUniqueStrings(); k++) { System.out.println("String table value " + k + " = " + sstrec.getString(k)); } break; case LabelSSTRecord.sid: LabelSSTRecord lrec = (LabelSSTRecord) record; System.out.println("String cell found with value " + sstrec.getString(lrec.getSSTIndex())); break; } } /** * Read an excel file and spit out what we find. * * @param args Expect one argument that is the file to read. * @throws IOException When there is an error processing the file. */ public static void main(String[] args) throws IOException { // create a new file input stream with the input file specified // at the command line FileInputStream fin = new FileInputStream(args[0]); // create a new org.apache.poi.poifs.filesystem.Filesystem POIFSFileSystem poifs = new POIFSFileSystem(fin); // get the Workbook (excel part) stream in a InputStream InputStream din = poifs.createDocumentInputStream("Workbook"); // construct out HSSFRequest object HSSFRequest req = new HSSFRequest(); // lazy listen for ALL records with the listener shown above req.addListenerForAllRecords(new EventExample()); // create our event factory HSSFEventFactory factory = new HSSFEventFactory(); // process our events based on the document input stream factory.processEvents(req, din); // once all the events are processed close our file input stream fin.close(); // and our document input stream (don't want to leak these!) din.close(); System.out.println("done."); } }
取自： https ： //poi.apache.org/spreadsheet/how-to.html
虽然这可能不会回答你如何使用它作为一个javax.sql.DataSource的问题，这将是一个很好的支持的方式。
如果你确实想通过JDBC来使用它，请查看http://www.jguru.com/faq/view.jsp?EID=32876 。
由于Excel附带了一个ODBC驱动程序，因此我们将使用随Sun的JDK附带的JDBC-ODBC桥驱动程序连接到我们的电子表格。
sun.jdbc.odbc.JdbcOdbcDriver自Java 8以来已被删除，因此您将不得不使用其他替代方法或使用Java 7.我不知道Java 8中有任何好的Jdbc Obdc桥接。