这东西捯饬了好长时间都不成功，还好又仔细找了官网入门资料，才做出一个简单的东西。

事先需要安装Tomcat，具体步骤参考birt官网教程，www.eclipse.org/birt/documentation/integrating/viewer-setup.php

官方提供的代码：

import java.io.IOException;

import org.eclipse.birt.core.framework.Platform;

import org.eclipse.birt.report.model.api.CellHandle;

import org.eclipse.birt.report.model.api.DesignConfig;

import org.eclipse.birt.report.model.api.DesignElementHandle;

import org.eclipse.birt.report.model.api.ElementFactory;

import org.eclipse.birt.report.model.api.GridHandle;

import org.eclipse.birt.report.model.api.IDesignEngine;

import org.eclipse.birt.report.model.api.IDesignEngineFactory;

import org.eclipse.birt.report.model.api.ImageHandle;

import org.eclipse.birt.report.model.api.LabelHandle;

import org.eclipse.birt.report.model.api.ReportDesignHandle;

import org.eclipse.birt.report.model.api.RowHandle;

import org.eclipse.birt.report.model.api.SessionHandle;

import org.eclipse.birt.report.model.api.activity.SemanticException;

import com.ibm.icu.util.ULocale;

/**

* Simple BIRT Design Engine API (DEAPI) demo.

*/

public class SimpleCreate

{

public static void main( String[] args )

{

try

{

buildReport( );

}

catch( IOException e )

{

e.printStackTrace();

}

catch( SemanticException e )

{

e.printStackTrace();

}

}

// This method shows how to build a very simple BIRT report with a

// minimal set of content: a simple grid with an image and a label.

static void buildReport() throws IOException, SemanticException

{

// Create a session handle. This is used to manage all open designs.

// Your app need create the session only once.

//Configure the Engine and start the Platform

DesignConfig config = new DesignConfig( );//org.eclipse.birt.report.model.api.DesignConfig

config.setProperty("BIRT_HOME", "D:/birt-runtime-4_5_0/ReportEngine");

IDesignEngine engine = null;

try

{

Platform.startup( config );

IDesignEngineFactory factory = (IDesignEngineFactory) Platform.createFactoryObject( IDesignEngineFactory.EXTENSION_DESIGN_ENGINE_FACTORY );

engine = factory.createDesignEngine( config );

}

catch( Exception ex )

{

ex.printStackTrace();

}

SessionHandle session = engine.newSessionHandle( ULocale.ENGLISH ) ;

// Create a new report design.

ReportDesignHandle design = session.createDesign( );

// The element factory creates instances of the various BIRT elements.

ElementFactory efactory = design.getElementFactory( );

// Create a simple master page that describes how the report will appear when printed.

//

// Note: The report will fail to load in the BIRT designer unless you create a master page.

DesignElementHandle element = efactory.newSimpleMasterPage( "Page Master" );

design.getMasterPages( ).add( element );

// Create a grid and add it to the "body" slot of the report design.

GridHandle grid = efactory.newGridItem( null, 2 /* cols */, 1 /* row */ );

design.getBody( ).add( grid );

// Note: Set the table width to 100% to prevent the label

// from appearing too narrow in the layout view.

grid.setWidth( "100%" );

// Get the first row.

RowHandle row = (RowHandle) grid.getRows( ).get( 0 );

// Create an image and add it to the first cell.

ImageHandle image = efactory.newImage( null );

CellHandle cell = (CellHandle) row.getCells( ).get( 0 );

cell.getContent( ).add( image );

image.setURL( "\"urlofimage\"" );

// Create a label and add it to the second cell.

LabelHandle label = efactory.newLabel( null );

cell = (CellHandle) row.getCells( ).get( 1 );

cell.getContent( ).add( label );

label.setText( "Hello, world!" );

// Save the design and close it.

design.saveAs( "d:/Program Files/apache-tomcat-8.5.2/webapps/birt/work.rptdesign" ); //将报表文件放在Tomcat目录下以便显示

design.close( );

System.out.println("Finished");

// We're done!

}

}

运行代码之前，需要把birt-runtime中/ReportEngine/lib文件夹下的所有jar包导入。

程序成功运行后会在Tomcat的birt目录下新建work.rptdesign报表文件，浏览器登陆http://localhost:8080/birt/frameset?__report=work.rptdesign即可显示结果。

源码具体含义可参考官网API。