【发布时间】：2013-09-30 21:13:07
【问题描述】：
我安装了 epson 打印机驱动程序和 epson javapos apd 程序编译成功得到异常运行时
Exception in thread "main" jpos.JposException: Could not connect to service with
logicalName = EPSON TM-U220 Receipt: Exception.message=Could not create service instance.
at jpos.loader.simple.SimpleServiceConnection.connect(Unknown Source)
at jpos.BaseJposControl.open(Unknown Source)
at Test4.main(Test4.java:17)
我在同一目录中的 jpos.xml 文件包含以下代码
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE JposEntries PUBLIC "-//JavaPOS//DTD//EN" "jpos/res/jcl.dtd">
<JposEntries>
<!--Saved by JavaPOS jpos.config/loader (JCL) version 2.2.0 on 9/30/13 12:40 PM-->
<JposEntry logicalName="EPSON TM-U220 Receipt">
<creation factoryClass="jp.co.epson.uposcommon.util.EpsonJposServiceInstanceFactory" serviceClass="jp.co.epson.upos.pntr.U220DService"/>
<vendor name="SEIKO EPSON" url="http://www.epson.com"/>
<jpos category="POSPrinter" version="1.11"/>
<product description="EPSON TM-U220D Printer Device Service" name="EPSON Services for JavaPOS(TM) Standard" url="http://www.epson.com"/>
<!--Other non JavaPOS required property (mostly vendor properties and bus specific properties i.e. RS232 )-->
<prop name="Halftone" type="String" value="0"/>
<prop name="PhysicalPrinterName" type="String" value="EPSON TM-U220 Receipt"/>
<prop name="NVRAMControlLevel" type="String" value="1"/>
<prop name="Stamp" type="String" value="0"/>
<prop name="OutputCompleteType" type="String" value="2"/>
<prop name="StatusThreadInterval" type="String" value="100"/>
<prop name="OutputTimeout" type="String" value="500"/>
<prop name="PortType" type="String" value="2"/>
<prop name="OutputBufferSize" type="String" value="65536"/>
<prop name="FirmRecordLog" type="String" value="1"/>
<prop name="UsedNVRAM" type="String" value="0"/>
<prop name="ReceiveTimeout" type="String" value="1000"/>
<prop name="SlpReverseEject" type="String" value="0"/>
<prop name="PortName" type="String" value="ESDPRT001"/>
<prop name="OfflineRetryIntervalTime" type="String" value="25"/>
<prop name="DefaultSlpClampTime" type="String" value="0"/>
<prop name="epson.trace.file" type="String" value="trace.log"/>
<prop name="AsyncProcessingSize" type="String" value="1"/>
<prop name="KanjiTwoWaysPrint" type="String" value="0"/>
<prop name="PulseStep" type="String" value="2"/>
<prop name="PortInterfaceName" type="String" value="USB"/>
<prop name="OutPipe" type="String" value="0"/>
<prop name="U375Compatible" type="String" value="0"/>
<prop name="PortNameType" type="String" value="2"/>
<prop name="preCutterFunction" type="String" value="0"/>
<prop name="epson.tracing" type="String" value="false"/>
<prop name="epson.trace.max.size" type="String" value="1000"/>
<prop name="RecPaperSize" type="String" value="76"/>
<prop name="DeviceDesc" type="String" value="EPSON TM-U220D POSPrinter"/>
<prop name="PageModeExt" type="String" value="0"/>
<prop name="SupportStatistics" type="String" value="1"/>
<prop name="OutputErrorOption" type="String" value="0"/>
<prop name="FirmProgressRange" type="String" value="10"/>
<prop name="SupportFirmware" type="String" value="0"/>
<prop name="InputTimeout" type="String" value="100"/>
<prop name="AutoPowerOff" type="String" value="0"/>
<prop name="SlpMoreColumns" type="String" value="0"/>
<prop name="RecPaperType" type="String" value="0"/>
<prop name="MemorySwitch" type="String" value="0"/>
<prop name="ReadThreadInterval" type="String" value="-1"/>
<prop name="QueuingOfflineTimeout" type="String" value="1000"/>
<prop name="TwoColor" type="String" value="0"/>
<prop name="InitializeThreadTime" type="String" value="1000"/>
<prop name="TwoByteCharacter" type="String" value="0"/>
<prop name="FirmLogFileSize" type="String" value="1000"/>
<prop name="Peeler" type="String" value="0"/>
<prop name="InPipe" type="String" value="1"/>
<prop name="ConfigurationFile" type="String" value="epson/xml/Setting/TM U220DSetting.xml"/>
<prop name="Custom1Color" type="String" value="0xFF0000"/>
<prop name="preEndorseFunction" type="String" value="0"/>
<prop name="Upos.Spec_c" type="String" value="false"/>
<prop name="FirmNotifyAllProgressEvents" type="String" value="0"/>
<prop name="InitializeResponseTimeout" type="String" value="1000"/>
<prop name="ReceiveRetryTime" type="String" value="25"/>
<prop name="UsedInterCharacterSet" type="String" value="0"/>
<prop name="RecMoreColumns" type="String" value="0"/>
<prop name="PrinterTransmitTimeout" type="String" value="30000"/>
<prop name="WriteThreadInterval" type="String" value="-1"/>
<prop name="preORCBFunction" type="String" value="0"/>
<prop name="RecNearEndSensor" type="String" value="0"/>
<prop name="LogObject" type="String" value=""/>
<prop name="Cutter" type="String" value="0"/>
<prop name="PhysicalDevice" type="String" value="TM-U220D"/>
<prop name="FirmLogFileName" type="String" value="Firmware.log"/>
<prop name="UsedPeeler" type="String" value="0"/>
<prop name="InputBufferSize" type="String" value="4096"/>
<prop name="TransmitTimeout" type="String" value="5000"/>
<prop name="OfflineCount" type="String" value="2"/>
<prop name="TransmitRetryTime" type="String" value="100"/>
<prop name="DirectIOEventTimeout" type="String" value="5000"/>
缺少什么我安装了所有必需的 jar 并添加到类路径中 请帮忙 提前打招呼
【问题讨论】：
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检查这个问题以获得正确的设置：stackoverflow.com/questions/30839049/…