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文件的类型，POI和JXL不起作用。）应用程序需要在unix环境中运行。我将应用程序配置为通过yml文件设置数据源url和driver-class-name。
是否有可以使用Excel作为数据源的驱动程序（最好在maven仓库中可用）？我应该为网址指定什么值？
修改
以下是尝试将Excel电子表格用作javax.sql.DataSource的代码：
的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 /主/ JAVA / COM /测试/ 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 /测试/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] o.s.batch.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]
答案 0 :(得分：2)
对于Excel文件c：/temp/test1.xlsx和'Table'abc。您必须完全以这种形式编写驱动程序名称！
对于Java8，您需要将所有sun包类从jre7复制到新的jar文件，再从项目文件夹中的jre7 bin文件夹复制JdbcOdbc.dll。
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) {
}
}
}
}
}
答案 1 :(得分：0)
您需要ODBC桥来从Excel中读取。 P Lease看看以下示例： http://www.java2s.com/Tutorial/Java/0340__Database/UseJDBCODBCbridgetoreadfromExcel.htm
答案 2 :(得分：0)
如果要使用Excel作为数据源，请使用Apache POI。
以下是如何使用它的示例
/**
* 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
虽然这可能无法回答您如何将其用作javax.sql.DataSource的问题，但这将是一种受到良好支持的方式。
如果您确实想通过JDBC使用它，请查看此http://www.jguru.com/faq/view.jsp?EID=32876。
自Java 8以来，由于Excel附带了ODBC驱动程序，我们将使用JDBC-ODBC桥 与Sun的JDK打包连接到我们的驱动程序的驱动程序 电子表格。
sun.jdbc.odbc.JdbcOdbcDriver已被删除，因此您必须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。