步驟包括與數據類型的類UniqueCategoryLabel

Question

可以請你告訴我的步驟，包括在Jasperreportstudio 6.1數據類型UniqueCategoryLabel一個.class或Jasperreportserver 6.1 在Jasper report Line chart Category expression same value is printed only once

我總是得到的消息描述「的java.lang .ClassNotFoundException：java.lang.UniqueCategoryLabel「在我將一個字段的類從java.lang.String改爲class =」java.lang.UniqueCategoryLabel「之後。 我沒有這種感覺，包括一個.class文件就足以在JasperReportStudio中解決這個問題。

問候

賴

Answer 1

感謝您的答覆。

這是在文章中建議該消息

java.lang.ClassNotFoundException: java.lang.UniqueCategoryLabel 
refers to the modification from 
<field name="charge" class="java.lang.String" to 
<field name="charge" class="java.lang.UniqueCategoryLabel" 

。 我希望這對你來說已經足夠了。請讓我現在，如果你需要更多的信息。 特此報告代碼：

<?xml version="1.0" encoding="UTF-8"?> 
<!-- Created with Jaspersoft Studio version 6.1.0.final using JasperReports Library version 6.1.0 --> 
<!-- 2015-08-31T11:45:11 --> 
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="ic_A4_1" pageWidth="1190" pageHeight="842" orientation="Landscape" columnWidth="802" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="fdc0bd49-2d10-4f3e-bbef-032ce95cbb2b"> 
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="Postgres Lokal (Postgres auf localhost 5432)"/> 
    <property name="com.jaspersoft.studio.unit." value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.pageHeight" value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.pageWidth" value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.topMargin" value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.bottomMargin" value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.leftMargin" value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.rightMargin" value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.columnWidth" value="pixel"/> 
    <property name="com.jaspersoft.studio.unit.columnSpacing" value="pixel"/> 
    <parameter name="Materialnr" class="java.lang.Long"> 
     <parameterDescription><![CDATA[Materialnummer eingeben]]></parameterDescription> 
    </parameter> 
    <parameter name="Feldstaerke" class="java.util.Collection"> 
     <parameterDescription><![CDATA[Feldstärke]]></parameterDescription> 
    </parameter> 
    <parameter name="Zeitraum" class="java.lang.Long"> 
     <parameterDescription><![CDATA[Zeitraum]]></parameterDescription> 
    </parameter> 
    <parameter name="Chargennr" class="java.util.Collection"> 
     <parameterDescription><![CDATA[Chargennummer]]></parameterDescription> 
    </parameter> 
    <queryString> 
     <![CDATA[select charge, avg(ic_ist_tc) as ic, 
0 as ic_charge,messdatum from tbl_physikal_eigensch 
where $X{IN,charge, Chargennr} and matnr = $P{Materialnr} and $X{IN,cast(feld as text),Feldstaerke} and 
messdatum > CURRENT_DATE - $P!{Zeitraum} group by ic_ist_tc, charge, messdatum]]> 
    </queryString> 
    <field name="charge" class="**java.lang.UniqueCategoryLabel**"/> 
    <field name="ic" class="java.lang.Double"/> 
    <field name="ic_charge" class="java.lang.Integer"/> 
    <field name="messdatum" class="java.sql.Timestamp"/> 
    <background> 
     <band splitType="Stretch"/> 
    </background> 
    <title> 
     <band height="79" splitType="Stretch"> 
      <textField> 
       <reportElement x="140" y="10" width="310" height="30" uuid="7e5a58f0-bef2-4a19-9e3d-8463fd183e97"/> 
       <textElement> 
        <font size="16" isBold="true"/> 
       </textElement> 
       <textFieldExpression><![CDATA["Test für Wolkenauswertung"]]></textFieldExpression> 
      </textField> 
     </band> 
    </title> 
    <pageHeader> 
     <band height="35" splitType="Stretch"> 
      <textField> 
       <reportElement x="0" y="4" width="141" height="30" uuid="1cdaa2f5-9de1-4a49-b64a-18e9c797523f"/> 
       <textFieldExpression><![CDATA[$P{Materialnr}]]></textFieldExpression> 
      </textField> 
      <textField> 
       <reportElement x="141" y="4" width="138" height="30" uuid="cfdcf595-23fb-463a-b785-686328dcba27"/> 
       <textFieldExpression><![CDATA[$P{Feldstaerke}]]></textFieldExpression> 
      </textField> 
      <textField> 
       <reportElement x="279" y="4" width="138" height="30" uuid="7b14cbf7-61ec-4cff-90b0-03020753dc48"/> 
       <textFieldExpression><![CDATA[$P{Zeitraum}]]></textFieldExpression> 
      </textField> 
      <textField> 
       <reportElement x="417" y="4" width="138" height="30" uuid="2b8b6fc8-c6a3-46d4-988d-8c7852e63c65"/> 
       <textFieldExpression><![CDATA[$P{Chargennr}]]></textFieldExpression> 
      </textField> 
     </band> 
    </pageHeader> 
    <columnHeader> 
     <band height="39" splitType="Stretch"/> 
    </columnHeader> 
    <detail> 
     <band height="44" splitType="Stretch"> 
      <printWhenExpression><![CDATA[$F{charge} != null]]></printWhenExpression> 
      <textField> 
       <reportElement x="0" y="0" width="141" height="30" uuid="b3c2fa4f-15c4-470f-91e1-38647e4a9d5c"/> 
       <textFieldExpression><![CDATA[$F{charge}]]></textFieldExpression> 
      </textField> 
      <textField> 
       <reportElement x="141" y="0" width="138" height="30" uuid="21d7eb63-4854-4be7-af38-42b7339dceaf"/> 
       <textFieldExpression><![CDATA[$F{ic}]]></textFieldExpression> 
      </textField> 
      <textField> 
       <reportElement x="279" y="0" width="138" height="30" uuid="e2b21f1c-d6c5-4063-83d1-02ea6781e116"/> 
       <textFieldExpression><![CDATA[$F{ic_charge}]]></textFieldExpression> 
      </textField> 
      <textField> 
       <reportElement x="417" y="0" width="138" height="30" uuid="55d01538-9498-4bf8-a5ee-f354d4def1c4"/> 
       <textFieldExpression><![CDATA[$F{messdatum}]]></textFieldExpression> 
      </textField> 
     </band> 
    </detail> 
    <columnFooter> 
     <band height="45" splitType="Stretch"/> 
    </columnFooter> 
    <pageFooter> 
     <band height="54" splitType="Stretch"/> 
    </pageFooter> 
    <summary> 
     <band height="801" splitType="Stretch"> 
      <property name="com.jaspersoft.studio.unit.height" value="pixel"/> 
      <lineChart> 
       <chart evaluationTime="Report"> 
        <reportElement stretchType="RelativeToTallestObject" isPrintRepeatedValues="false" x="0" y="0" width="500" height="350" isPrintInFirstWholeBand="true" isPrintWhenDetailOverflows="true" uuid="1ab5eddf-90e6-4356-b819-687ea0c6c514"/> 
        <chartTitle> 
         <titleExpression><![CDATA[$P{Materialnr}]]></titleExpression> 
        </chartTitle> 
        <chartSubtitle/> 
        <chartLegend position="Bottom"> 
         <font size="8"/> 
        </chartLegend> 
       </chart> 
       <categoryDataset> 
        <dataset resetType="None" incrementType="Report"/> 
        <categorySeries> 
         <seriesExpression><![CDATA["CHARGE"]]></seriesExpression> 
         <categoryExpression><![CDATA[$F{charge}]]></categoryExpression> 
         <valueExpression><![CDATA[$F{ic}]]></valueExpression> 
        </categorySeries> 
        <categorySeries> 
         <seriesExpression><![CDATA["CHARGE2"]]></seriesExpression> 
         <categoryExpression><![CDATA[$F{charge}]]></categoryExpression> 
         <valueExpression><![CDATA[$F{ic}]]></valueExpression> 
        </categorySeries> 
       </categoryDataset> 
       <linePlot> 
        <plot backgroundAlpha="1.0" foregroundAlpha="1.0" labelRotation="-90.0"> 
         <seriesColor seriesOrder="0" color="#EB2902"/> 
         <seriesColor seriesOrder="1" color="#38C83B"/> 
        </plot> 
        <categoryAxisFormat labelRotation="-90.0"> 
         <axisFormat tickLabelColor="#0A0A0A" verticalTickLabels="false"> 
          <labelFont> 
           <font size="2"/> 
          </labelFont> 
          <tickLabelFont> 
           <font size="8"/> 
          </tickLabelFont> 
         </axisFormat> 
        </categoryAxisFormat> 
        <valueAxisFormat> 
         <axisFormat> 
          <labelFont> 
           <font size="8"/> 
          </labelFont> 
          <tickLabelFont> 
           <font size="8"/> 
          </tickLabelFont> 
         </axisFormat> 
        </valueAxisFormat> 
       </linePlot> 
      </lineChart> 
     </band> 
    </summary> 
</jasperReport>