主要报告（jsonMain.jrxml）

Question

我有像这样的json对象

{
  "data":[
    {
       "no":1,
       "name" : "yuda",
       "address" : "surabaya"
    },
    {
        "no":2,
        "name":"adi",
        "address":"jakarta"
    }
  ],
  "comp_name":"TEST CORP",
  "title":"Company employee",
  "status":"success"
}

我使用http rest API为json提供服务，我想用jasper报告创建报告，如果我将其作为网址JsonQueryExecuterFactory.JSON_SOURCE传递，我就会成功。

我的问题是我无法在JSON_SOURCE中包含会话Cookie，我尝试的解决方案是在java代码中创建一个http请求，然后将其包含在JsonQueryExecuterFactory.JSON_INPUT_STREAM中，但它不起作用，只显示空白页面。即使我将参数从$P{net.sf.jasperreports.json.source}更新为$P{JSON_INPUT_STREAM}，它也无法正常工作。

Answer 1

这是通过java从http请求加载json的完整示例（您可以根据需要添加标头），使用子报表将data节点作为subDataSource

示例网址 http://www.jdd.it/so/jsonTest.json ^{*您的json在此网址上可用}

主要报告（jsonMain.jrxml）

<?xml version="1.0" encoding="UTF-8"?>
<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="JsonMain" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="15289120-bdf0-4edd-905c-647999c3c0cc">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="json"/>
    <parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false">
        <defaultValueExpression><![CDATA["C:\\jdd\\..path..to..subreport\\"]]></defaultValueExpression>
    </parameter>
    <queryString language="JSON">
        <![CDATA[]]>
    </queryString>
    <field name="comp_name" class="java.lang.String">
        <fieldDescription><![CDATA[comp_name]]></fieldDescription>
    </field>
    <field name="title" class="java.lang.String">
        <fieldDescription><![CDATA[title]]></fieldDescription>
    </field>
    <field name="status" class="java.lang.String">
        <fieldDescription><![CDATA[status]]></fieldDescription>
    </field>
    <detail>
        <band height="40">
            <staticText>
                <reportElement x="0" y="0" width="115" height="20" uuid="023be3f7-66fc-4718-9ca3-220c16ddc97a"/>
                <textElement verticalAlignment="Middle">
                    <font size="14" isBold="true"/>
                </textElement>
                <text><![CDATA[Company name:]]></text>
            </staticText>
            <textField>
                <reportElement x="115" y="0" width="103" height="20" uuid="15aadf03-03a1-4c05-8bf9-cdf7db09153c"/>
                <textElement verticalAlignment="Middle">
                    <font size="14" isBold="true"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{comp_name}]]></textFieldExpression>
            </textField>
            <subreport>
                <reportElement x="0" y="20" width="555" height="20" uuid="c8251ce1-5de4-476f-a4cc-89717d422cc7"/>
                <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("data")]]></dataSourceExpression>
                <subreportExpression><![CDATA[$P{SUBREPORT_DIR} + "jsonMain_subreport.jasper"]]></subreportExpression>
            </subreport>
            <staticText>
                <reportElement x="218" y="0" width="39" height="20" uuid="4c8d8333-117a-4447-98ac-bfebbd28776a"/>
                <textElement verticalAlignment="Middle">
                    <font size="14" isBold="true"/>
                </textElement>
                <text><![CDATA[Title:]]></text>
            </staticText>
            <textField>
                <reportElement x="257" y="0" width="154" height="20" uuid="0f266993-1bf3-41cf-8db6-c8b5aaccef74"/>
                <textElement verticalAlignment="Middle">
                    <font size="14" isBold="true"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{title}]]></textFieldExpression>
            </textField>
            <staticText>
                <reportElement x="411" y="0" width="51" height="20" uuid="9afd4de9-5155-43a6-ae63-337bb77deac8"/>
                <textElement verticalAlignment="Middle">
                    <font size="14" isBold="true"/>
                </textElement>
                <text><![CDATA[Status:]]></text>
            </staticText>
            <textField>
                <reportElement x="462" y="0" width="93" height="20" uuid="6e8ab3b0-c8eb-40f4-ade8-9dd60e34a721"/>
                <textElement verticalAlignment="Middle">
                    <font size="14" isBold="true"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{status}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>

关键是subDataSource data节点((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("data") 并将其传递给子报告

子报告（jsonMain_subreport.jrxml）

<?xml version="1.0" encoding="UTF-8"?>
<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="jsonMain_subreport" language="java" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="9c681432-4547-4fd8-91c1-5634ca368da6">
    <field name="no" class="java.lang.String"/>
    <field name="name" class="java.lang.String"/>
    <field name="address" class="java.lang.String"/>
    <columnHeader>
        <band height="20" splitType="Stretch">
            <staticText>
                <reportElement mode="Opaque" x="0" y="0" width="100" height="20" backcolor="#CCCCCC" uuid="3dbc394e-6a5a-45d2-8d53-c9880f3974e7"/>
                <box leftPadding="2" rightPadding="2">
                    <pen lineWidth="0.25"/>
                    <topPen lineWidth="0.25"/>
                    <leftPen lineWidth="0.25"/>
                    <bottomPen lineWidth="0.25"/>
                    <rightPen lineWidth="0.25"/>
                </box>
                <textElement verticalAlignment="Middle"/>
                <text><![CDATA[No]]></text>
            </staticText>
            <staticText>
                <reportElement mode="Opaque" x="100" y="0" width="167" height="20" backcolor="#CCCCCC" uuid="2c40967a-42d5-439e-a1c3-5d41fd50f906"/>
                <box leftPadding="2" rightPadding="2">
                    <pen lineWidth="0.25"/>
                    <topPen lineWidth="0.25"/>
                    <leftPen lineWidth="0.25"/>
                    <bottomPen lineWidth="0.25"/>
                    <rightPen lineWidth="0.25"/>
                </box>
                <textElement verticalAlignment="Middle"/>
                <text><![CDATA[Name]]></text>
            </staticText>
            <staticText>
                <reportElement mode="Opaque" x="267" y="0" width="288" height="20" backcolor="#CCCCCC" uuid="0d72063d-6354-4e8d-9f89-52d00d100d3e"/>
                <box leftPadding="2" rightPadding="2">
                    <pen lineWidth="0.25"/>
                    <topPen lineWidth="0.25"/>
                    <leftPen lineWidth="0.25"/>
                    <bottomPen lineWidth="0.25"/>
                    <rightPen lineWidth="0.25"/>
                </box>
                <textElement verticalAlignment="Middle"/>
                <text><![CDATA[Address]]></text>
            </staticText>
        </band>
    </columnHeader>
    <detail>
        <band height="20" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="100" height="20" uuid="e9cc4829-5e9a-4747-a594-489b6230713c"/>
                <box leftPadding="2" rightPadding="2">
                    <pen lineWidth="0.25"/>
                    <topPen lineWidth="0.25"/>
                    <leftPen lineWidth="0.25"/>
                    <bottomPen lineWidth="0.25"/>
                    <rightPen lineWidth="0.25"/>
                </box>
                <textElement verticalAlignment="Middle"/>
                <textFieldExpression><![CDATA[$F{no}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="100" y="0" width="167" height="20" uuid="1c02f144-1c6c-4704-9bfb-13ac39007841"/>
                <box leftPadding="2" rightPadding="2">
                    <pen lineWidth="0.25"/>
                    <topPen lineWidth="0.25"/>
                    <leftPen lineWidth="0.25"/>
                    <bottomPen lineWidth="0.25"/>
                    <rightPen lineWidth="0.25"/>
                </box>
                <textElement verticalAlignment="Middle"/>
                <textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="267" y="0" width="288" height="20" uuid="e0b9aff3-c8e3-4895-90a2-339ffb7c856f"/>
                <box leftPadding="2" rightPadding="2">
                    <pen lineWidth="0.25"/>
                    <topPen lineWidth="0.25"/>
                    <leftPen lineWidth="0.25"/>
                    <bottomPen lineWidth="0.25"/>
                    <rightPen lineWidth="0.25"/>
                </box>
                <textElement verticalAlignment="Middle"/>
                <textFieldExpression><![CDATA[$F{address}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>

此报告中没有任何特殊内容，这些字段对应于data节点中的字段，请记住在运行Java代码之前将子报告编译为.jasper，因为主报告中指示了.jasper

Java代码

//Get our main report
JasperReport report = JasperCompileManager.compileReport("jsonMain.jrxml");

//Open url connection
URLConnection urlConn = new URL("http://www.jdd.it/so/jsonTest.json").openConnection();
//set some cookies
urlConn.setRequestProperty("Cookie", "cookie1=hello; cookie2=world");

//Get the stream
try (InputStream is =urlConn.getInputStream()) {
    Map<String, Object> parametersMap = new HashMap<>();
    //Pass to parameter map
    parametersMap.put(JsonQueryExecuterFactory.JSON_INPUT_STREAM, is);
    //Fill report
    JasperPrint jasperPrint = JasperFillManager.fillReport(report, parametersMap);
    //Export to pdf
    JRPdfExporter exporter = new JRPdfExporter();
    exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
    exporter.setExporterOutput(new SimpleOutputStreamExporterOutput("json.pdf"));
    SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
    configuration.setMetadataAuthor("Me");
    exporter.setConfiguration(configuration);
    exporter.exportReport();
}

结果

Answer 2

以下是使用http属性和JSONQL在较新的JasperReports版本6.3.1中执行此操作的方法：

JRXML：

<?xml version="1.0" encoding="UTF-8"?>
<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="JsonHttpDataAdapterReport" columnCount="3" pageWidth="595" pageHeight="842" columnWidth="171" leftMargin="40" rightMargin="40" topMargin="50" bottomMargin="50" uuid="b85a2cf8-dd0c-4a31-804c-e7b217f9b42b">
    <property name="net.sf.jasperreports.data.adapter" value="JsonHttpDataAdapter.xml"/>
    <parameter name="CookieParam" class="java.lang.String" evaluationTime="Early">
        <property name="net.sf.jasperreports.http.data.header" value="Cookie"/>
        <defaultValueExpression><![CDATA["name1=val1;name2=val2"]]></defaultValueExpression>
    </parameter>
    <queryString language="jsonql">
        <![CDATA[data.*]]>
    </queryString>
    <field name="CompanyName" class="java.lang.String">
        <fieldDescription><![CDATA[$.comp_name]]></fieldDescription>
    </field>
    <field name="Title" class="java.lang.String">
        <fieldDescription><![CDATA[$.title]]></fieldDescription>
    </field>
    <field name="Number" class="java.lang.String">
        <fieldDescription><![CDATA[no]]></fieldDescription>
    </field>
    <field name="Name" class="java.lang.String">
        <fieldDescription><![CDATA[name]]></fieldDescription>
    </field>
    <field name="Address" class="java.lang.String">
        <fieldDescription><![CDATA[address]]></fieldDescription>
    </field>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="79" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="280" height="30" uuid="6333da35-2a4b-4373-9838-2d9e71981516"/>
                <textElement>
                    <font size="20"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{CompanyName}]]></textFieldExpression>
            </textField>
        </band>
    </title>
    <pageHeader>
        <band height="30" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="300" height="30" uuid="4062fecd-290c-4790-8f92-868d4c58f054"/>
                <textElement>
                    <font size="16"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{Title}]]></textFieldExpression>
            </textField>
        </band>
    </pageHeader>
    <columnHeader>
        <band height="31" splitType="Stretch">
            <staticText>
                <reportElement mode="Opaque" x="0" y="0" width="80" height="30" backcolor="#A7E9FA" uuid="b66244aa-5ae0-4e24-9b4f-aafd7f5883cc"/>
                <box topPadding="5" leftPadding="10" bottomPadding="0" rightPadding="0"/>
                <textElement>
                    <font isBold="true"/>
                </textElement>
                <text><![CDATA[Number]]></text>
            </staticText>
            <staticText>
                <reportElement mode="Opaque" x="80" y="0" width="185" height="30" backcolor="#A7E9FA" uuid="965b8d2b-2baf-4842-be30-430ae395a8aa"/>
                <box topPadding="5" leftPadding="10" bottomPadding="0" rightPadding="0"/>
                <textElement>
                    <font isBold="true"/>
                </textElement>
                <text><![CDATA[Name]]></text>
            </staticText>
            <staticText>
                <reportElement mode="Opaque" x="265" y="0" width="255" height="30" backcolor="#A7E9FA" uuid="f56fe462-a90f-4228-a243-3222552f7e45"/>
                <box topPadding="5" leftPadding="10" bottomPadding="0" rightPadding="0"/>
                <textElement>
                    <font isBold="true"/>
                </textElement>
                <text><![CDATA[Address]]></text>
            </staticText>
        </band>
    </columnHeader>
    <detail>
        <band height="30" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="80" height="30" uuid="6b8a6731-19d4-44ee-b41f-c6977729d334"/>
                <box topPadding="5" leftPadding="10"/>
                <textFieldExpression><![CDATA[$F{Number}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="80" y="0" width="185" height="30" uuid="6e51e1eb-ff0e-4e2f-aa05-056060901aff"/>
                <box topPadding="5" leftPadding="10"/>
                <textFieldExpression><![CDATA[$F{Name}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="265" y="0" width="255" height="30" uuid="b79f1a8e-627f-4952-b5eb-632d5db771eb"/>
                <box topPadding="5" leftPadding="10"/>
                <textFieldExpression><![CDATA[$F{Address}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>

JsonHttpDataAdapter.xml：

<?xml version="1.0" encoding="UTF-8" ?>
<jsonDataAdapter class="net.sf.jasperreports.data.json.JsonDataAdapterImpl">
    <name>JSON Http Data Adapter</name>
    <dataFile xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
            xsi:type="httpDataLocation">
        <method>GET</method>
        <url>http://domaindotsomething/data.json</url>
    </dataFile>
    <language>jsonql</language>
    <useConnection>true</useConnection>
    <timeZone xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:java="http://java.sun.com"
              xsi:type="java:java.lang.String">Europe/Bucharest</timeZone>
    <locale xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:java="http://java.sun.com"
            xsi:type="java:java.lang.String">en_US</locale>
    <selectExpression></selectExpression>
</jsonDataAdapter>

输出：

编辑这应该只被视为JasperReports v6.3.1 API解决方案，直到发布更新版本的JasperSoft Studio并对页面属性/参数提供适当的支持。当前最新版本的JasperSoft Studio，v6.3.1 final，可防止使用基于URL的JSON数据适配器进行预览。即使{6.3}标记中的rebuilding JasperSoft Studio以及阻止其工作的错误的fix，似乎也不允许此解决方案完全使用基于报表的http属性，但只能使用完全配置的JSON数据适配器。

如何使用java将json数组添加到表中以便我可以传递cookie？

2 个答案:

主要报告（jsonMain.jrxml）

子报告（jsonMain_subreport.jrxml）

Java代码

结果