iReport+jasperReport之NoXML

最新推荐文章于 2021-02-10 11:57:35 发布

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最新推荐文章于 2021-02-10 11:57:35 发布

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jasperReport的这个包 net.sf.jasperreports.engine.design 是这样描述的：Contains design time implementations for the library's main interfaces as well as report compiling tools.因此我们完全可以使用它的API构建自己的报表，还是和前几篇使用同一个数据库表。
构建JasperDesign对象：
设置一些对应的属性：

// JasperDesign
        JasperDesign jasperDesign = new JasperDesign();
        jasperDesign.setName("NoXmlDesignReport" );
        jasperDesign.setPageWidth(595 );
        jasperDesign.setPageHeight(842 );
        jasperDesign.setColumnWidth(515 );
        jasperDesign.setColumnSpacing(0 );
        jasperDesign.setLeftMargin(40 );
        jasperDesign.setRightMargin(40 );
        jasperDesign.setTopMargin(50 );
        jasperDesign.setBottomMargin(50);

字体：

// Fonts

JRDesignStyle normalStyle = new JRDesignStyle();

normalStyle.setName( " Arial_Normal " );

normalStyle.setDefault( true );

normalStyle.setFontName( " Arial " );

normalStyle.setFontSize( 12 );

normalStyle.setPdfFontName( " Helvetica " );

normalStyle.setPdfEncoding( " Cp1252 " );

normalStyle.setPdfEmbedded( false );

jasperDesign.addStyle(normalStyle);

JRDesignStyle boldStyle = new JRDesignStyle();

boldStyle.setName( " Arial_Bold " );

boldStyle.setFontName( " Arial " );

boldStyle.setFontSize( 12 );

boldStyle.setBold( true );

boldStyle.setPdfFontName( " Helvetica-Bold " );

boldStyle.setPdfEncoding( " Cp1252 " );

boldStyle.setPdfEmbedded( false );

jasperDesign.addStyle(boldStyle);

JRDesignStyle italicStyle = new JRDesignStyle();

italicStyle.setName( " Arial_Italic " );

italicStyle.setFontName( " Arial " );

italicStyle.setFontSize( 12 );

italicStyle.setItalic( true );

italicStyle.setPdfFontName( " Helvetica-Oblique " );

italicStyle.setPdfEncoding( " Cp1252 " );

italicStyle.setPdfEmbedded( false );

jasperDesign.addStyle(italicStyle);

定义报表的参数，并添加到报表设计器上

// Parameters

JRDesignParameter parameter = new JRDesignParameter();

parameter.setName( " ReportTitle " );

parameter.setValueClass(java.lang.String. class );

jasperDesign.addParameter(parameter);

定义报表的字段，这些字段是最终显示到报表上的域

// Fields

JRDesignField field = new JRDesignField();

field.setName( " userid " );

field.setValueClass(java.lang.Integer. class );

jasperDesign.addField(field);

field = new JRDesignField();

field.setName( " name " );

field.setValueClass(java.lang.String. class );

jasperDesign.addField(field);

field = new JRDesignField();

field.setName( " sex " );

field.setValueClass(java.lang.String. class );

jasperDesign.addField(field);

field = new JRDesignField();

field.setName( " age " );

field.setValueClass(java.lang.String. class );

jasperDesign.addField(field);

field = new JRDesignField();

field.setName( " password " );

field.setValueClass(java.lang.String. class );

jasperDesign.addField(field);

field = new JRDesignField();

field.setName( " department " );

field.setValueClass(java.lang.String. class );

jasperDesign.addField(field);

JRDesignBand band = null ;

JRDesignTextField textField = null ;

JRDesignExpression expression = null ;

开始画报表主体的title部分，不需要的部分可以不用代码标识出来，title部分放置了报表标题字段，只会出现在第一页的上方

// title

band = new JRDesignBand();

band.setHeight( 50 );

textField = new JRDesignTextField();

textField.setBlankWhenNull( true );

textField.setX( 0 );

textField.setY( 10 );

textField.setWidth( 500 );

textField.setHeight( 30 );

textField.setHorizontalAlignment(JRAlignment.HORIZONTAL_ALIGN_CENTER);

textField.setStyle(normalStyle);

textField.setFontSize( 22 );

expression = new JRDesignExpression();

expression.setValueClass(java.lang.String. class );

expression.setText( " $P{ReportTitle} " );

textField.setExpression(expression);

band.addElement(textField);

jasperDesign.setTitle(band);

detail部分：排列域的位置，并设置它的值，没一个域的值会最为一个 JRDesignExpression出现

// Detail

// pid

band = new JRDesignBand();

band.setHeight( 20 );

textField = new JRDesignTextField();

textField.setX( 5 );

textField.setY( 4 );

textField.setWidth( 100 );

textField.setHeight( 15 );

textField.setHorizontalAlignment(JRAlignment.HORIZONTAL_ALIGN_RIGHT);

textField.setStyle(normalStyle);

expression = new JRDesignExpression();

expression.setValueClass(java.lang.Integer. class );

expression.setText( " $F{userid} " );

textField.setExpression(expression);

band.addElement(textField);

// name

textField = new JRDesignTextField();

textField.setStretchWithOverflow( true );

textField.setX( 120 );

textField.setY( 4 );

textField.setWidth( 80 );

textField.setHeight( 15 );

textField.setPositionType(JRElement.POSITION_TYPE_FLOAT);

textField.setStyle(normalStyle);

expression = new JRDesignExpression();

expression.setValueClass(java.lang.String. class );

expression.setText( " $F{name} " );

textField.setExpression(expression);

band.addElement(textField);

// sex

textField = new JRDesignTextField();

textField.setStretchWithOverflow( true );

textField.setX( 200 );

textField.setY( 4 );

textField.setWidth( 30 );

textField.setHeight( 15 );

textField.setPositionType(JRElement.POSITION_TYPE_FLOAT);

textField.setStyle(normalStyle);

expression = new JRDesignExpression();

expression.setValueClass(java.lang.String. class );

expression.setText( " $F{sex} " );

textField.setExpression(expression);

band.addElement(textField);

// age

textField = new JRDesignTextField();

textField.setStretchWithOverflow( true );

textField.setX( 240 );

textField.setY( 4 );

textField.setWidth( 30 );

textField.setHeight( 15 );

textField.setPositionType(JRElement.POSITION_TYPE_FLOAT);

textField.setStyle(normalStyle);

expression = new JRDesignExpression();

expression.setValueClass(java.lang.String. class );

expression.setText( " $F{age} " );

textField.setExpression(expression);

band.addElement(textField);

// password

textField = new JRDesignTextField();

textField.setStretchWithOverflow( true );

textField.setX( 270 );

textField.setY( 4 );

textField.setWidth( 80 );

textField.setHeight( 15 );

textField.setPositionType(JRElement.POSITION_TYPE_FLOAT);

textField.setStyle(normalStyle);

expression = new JRDesignExpression();

expression.setValueClass(java.lang.String. class );

expression.setText( " $F{password} " );

textField.setExpression(expression);

band.addElement(textField);

// department

textField = new JRDesignTextField();

textField.setStretchWithOverflow( true );

textField.setX( 350 );

textField.setY( 4 );

textField.setWidth( 80 );

textField.setHeight( 15 );

textField.setPositionType(JRElement.POSITION_TYPE_FLOAT);

textField.setStyle(normalStyle);

expression = new JRDesignExpression();

expression.setValueClass(java.lang.String. class );

expression.setText( " $F{department} " );

textField.setExpression(expression);

band.addElement(textField);

JasperReport对象可以使用下面这句产生：

JasperCompileManager.compileReport(jasperDesign);

至此一个完整的报表就可以显示出来了。