如何修改jasper文件？

Question

我正在使用报告工具编辑.jasper文件。我正在更改参数左对齐的对齐，然后我保存该文件。它还会生成“jrxml”文件。在我的Java代码中，我可以传递.jasper位置来打印一些项目。但我的改变不会影响，旧设计仍然相同..

帮帮我，如何编辑和保存.jasper ???

public static JasperPrint createRefundPrint（Ticket ticket，HashMap map）抛出异常{final String FILE_RECEIPT_REPORT =“/ com /floreantpos / report / template / RefundReceipt.jasper”;

    TicketDataSource dataSource = new TicketDataSource(ticket);
    return createJasperPrint(FILE_RECEIPT_REPORT, map, new JRTableModelDataSource(dataSource));
}

Answer 1

如果您使用IReport编辑.jrxml报告，则只需按“预览”按钮即可。然后将在包含.jrxml文件的文件夹中自动生成.jasper报告文件

Answer 2

要编辑jasper报告，请在JRXML文件中进行更改。一旦构建或编译报告，它将生成一个.jasper文件，该文件在您的Java代码中使用。

Answer 3

你尝试制作动态报告。生成自己的报告时没有位置问题。例;

public JasperDesign createDesign() throws JRException {
    JasperDesign jasperDesign = new JasperDesign();
    jasperDesign.setName("sampleDynamicJasperDesign");
    jasperDesign.setPageWidth(595); // page width
    jasperDesign.setPageHeight(842); // page height
    jasperDesign.setColumnWidth(515);   // column width of page
    jasperDesign.setColumnSpacing(0);
    jasperDesign.setLeftMargin(40);
    jasperDesign.setRightMargin(40);
    jasperDesign.setTopMargin(20);
    jasperDesign.setBottomMargin(20);

    JRDesignExpression expression = new JRDesignExpression();

    //Set style of page.
    JRDesignStyle normalStyle = new JRDesignStyle();
    normalStyle.setName("Sans_Normal");
    normalStyle.setDefault(true);
    normalStyle.setFontName("DejaVu Sans");
    normalStyle.setFontSize(12);
    normalStyle.setPdfFontName("Helvetica");
    normalStyle.setPdfEncoding("Cp1252");
    normalStyle.setPdfEmbedded(false);
    jasperDesign.addStyle(normalStyle);


    /*
    * Generate field dynamically
    * */

    JRDesignField field = new JRDesignField();
    field.setName("firstName");
    field.setValueClass(String.class);
    jasperDesign.addField(field);

    field = new JRDesignField();
    field.setName("lastName");  // set name for field.
    field.setValueClass(String.class);  // set class for field. Its always depends upon data type which we want to get in this field.
    jasperDesign.addField(field);   // Added field in design.

    field = new JRDesignField();
    field.setName("age");
    field.setValueClass(Integer.class);
    jasperDesign.addField(field);

    JRDesignBand band = new JRDesignBand();

    //Title Band
    band = new JRDesignBand();
    band.setHeight(30);


    JRDesignStaticText staticText = new JRDesignStaticText();
    staticText.setText("Person's Specification");
    staticText.setX(0);
    staticText.setY(0);
    staticText.setHeight(20);
    staticText.setWidth(515);
    staticText.setHorizontalAlignment(HorizontalAlignEnum.CENTER);
    band.addElement(staticText);
    jasperDesign.setTitle(band);


    band = new JRDesignBand(); // New band
    band.setHeight(20); // Set band height

    /*Create text field dynamically*/
    JRDesignTextField textField = new JRDesignTextField();
    textField.setX(0);  // x position of text field.
    textField.setY(0);  // y position of text field.
    textField.setWidth(160);    // set width of text field.
    textField.setHeight(20);    // set height of text field.
    JRDesignExpression jrExpression = new JRDesignExpression(); // new instanse of expression. We need create new instance always when need to set expression.
    jrExpression.setText(""" + "First Name: " + """ + "+" + "$F{firstName}"); //  Added String before field in expression.
    textField.setExpression(jrExpression);  // set expression value in textfield.
    band.addElement(textField); // Added element in textfield.

    textField = new JRDesignTextField();
    textField.setX(160);
    textField.setY(0);
    textField.setWidth(160);
    textField.setHeight(20);
    jrExpression = new JRDesignExpression();
    jrExpression.setText("$F{lastName}" + "+" + """ + " :Last Name" + """); // Added string after field value
    textField.setExpression(jrExpression);
    band.addElement(textField);

    textField = new JRDesignTextField();
    textField.setX(320);
    textField.setY(0);
    textField.setWidth(160);
    textField.setHeight(20);
    jrExpression = new JRDesignExpression();
    String age = """ + "<font>" + """ + "+" + """ + "Age is: " + """ + "+" + """ + "</font><font>" + """ + "+" + "$F{age}" + "+" + """ + "</font>" + """;  // added html in text field with different color.
    jrExpression.setText(age);
    textField.setExpression(jrExpression);
    textField.setMarkup("html"); // By Default markup is none, We need to set it as html if we set expression as html.
    band.addElement(textField);
    ((JRDesignSection) jasperDesign.getDetailSection()).addBand(band);


    return jasperDesign;
}