birt | 易学教程

How to display another value if the column is null?

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问题 I am new to Birt reporting. My requirement is that, I want to display "N/A" when the actual value of the column is null. For ex: select vendor from account where id=1; o/p: NULL so, in place of null values in the report I want to display those fields as N/A. How to do this? 回答1: You can add a Value-Mapping in the Data-Cell where you want to display your value by the following: Click in the Data-Cell where you want to display the value. Go to the "Property Editor" and select the Tab "Map".

HTML embedded images in PDF

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问题 I created a report using BIRT and some dynamic fields are HTML values, which come from backend systems, but when I try to generate a PDF report with HTML embedded image - then it shows: "The resource of this report item is not reachable." instead of image. Is there any solution to render embedded image in PDF? It works fine in HTML. 回答1: I found a solution, how to render images in PDF, which are embedded in HTML content. The problem was with BIRT library ResourceLocatorWrapper class. I

MongoDB and BIRT Reporting?

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问题 Has anyone used BIRT to generate reports from MongoDB, can you describe how, any issues, etc. ? It looks like it might be possible to interface using JDBC and this experimental driver: https://github.com/erh/mongo-jdbc However, I am not exactly sure how to install this driver in eclipse to test it. 回答1: I've successfully integrated BIRT with MongoDB - it works perfectly well. The idea is this - define a scripted data source in BIRT, then define a data set that using that data source. The data

Arial font required in PDF (BIRT pdf renderer, Linux)

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问题 I've created a rptdesign file using BIRT IDE. This file contents are in Arial font, when I export the report to PDF in windows it works fine. I uses the default viewerServlet to create reports. But when I moved the report to a linux system, all contents in the report was displayed in Times New Roman font instead of Arial in th PDF file. Then I copied the Arial.ttf file to /var/font/truetype and added the following line to platform/plugins/org.eclipse.birt.report.engine.fonts_2.3.2.r232

Protect BIRT's report

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问题 I can prevent users opening BIRT report from website that I built. But considering the report's link still in browser's history, any user from this computer still able to open the report by calling the link from history, for instance. How to prevent the link of BIRT's report stays in the browser, after user close the report? So the only way to open the report is from the website. Or maybe someone has other better method to achieve the same goal? Like showing a user name and password in BIRT,

How to create a BIRT dataset that accepts multiple (CSV) values that it can be used inside “IN” clause in select statement

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问题 I am trying to create a dataset in BIRT report that contains a select statement with "IN" clause and pass a comma separate value in place of "?" using a BIRT parameter that accepts multiple values. for eg : select * from table where ID in ( ? ) I tried adding this in my dataset "select * from table where ID in ( params["paramer_name"].value)" but it is not working. I do not want to use the built in Filter of BIRT dataset because using the "IN" clause in query reduces the cost of query to lot

birt 报表与润乾报表对比

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BIRT，全称Business Intelligence and Reporting Tools，是为 Web 应用程序开发的基于 Eclipse 的开源报表系统，它的特点在于以 Java 和 JavaEE 为基础；而在当下商用报表系统中，润乾报表也同样以Java为基础，并支持对J2EE系统的嵌入式部署。那么，它们之间有哪些不同呢？这里我们就对这两种报表系统进行一下对比分析。初见报表安装使用 BIRT的安装分为两种，一种是下载已经安装好birt的eclipseIDE环境，配置环境变量之后使用；另外一种是插件安装方法，需要配置环境变量，下载eclipse环境，然后再下载birt所需要的插件，将插件安装到eclipse中使用。这两种安装方式，是eclipse环境中比较常见的，但操作起来比较复杂，而润乾报表在Windows系统中直接提供了.exe格式的安装包，不需要进行配置环境变量，只需要根据安装向导提示进行，即可完成安装。学习途径国内对BIRT报表的使用并不是很普及，教程也零散而不集中，并且国内几乎没有BIRT的官方技术交流平台和技术支持人员，因此如果用户在使用过程中遇到了难题，就只能自己通过网络查询解决。而润乾报表作为商用软件，不但提供了持续更新的详细官方教程，更是在安装包中提供了丰富的实例。同时，关于技术交流、答疑部分，也可以在可以在官方的乾学院

Birt script behaves differently via web viewer

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问题 i'm having trouble running a birt report via web. The report behaves as expected when running in html, but some scripts are not working properly via web viewer. I've got this script running on the "initialize" phase of the report (i know that a lot of the lines are not neccessary, just want be sure I got rid of any possible scripting syntax errors): var inc_number; var inc_number_old; var contador; var grupo; var proveedor; var contador_no_encaminadas; var contador_encaminadas; var contador

How to Access a specific Cell in Birt Dataset

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问题 I'm working on Birt report. I want to get data from specific cell in the data set. How can I set the row and column index in binding? 回答1: If you are trying to do any data binding in BIRT don't use a dynamic text item, use a data item. Gives you the same JavaScript/Display options but increases the options for using the results. 来源： https://stackoverflow.com/questions/17260665/how-to-access-a-specific-cell-in-birt-dataset

How I can populate data in birt report by passing parameters in the URL

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问题 I want to pass the parameters in the URL of the BIRT Report. In my reports there are 3 parameters like StoreId, fromdate and todate. I have also tried to write the code of beforeOpen Script of my dataSet in the Birt. Its is as : var store_id; var from_date; var to_date; store_id = params["Store_id"].value; from_date = params["fromdate"].value; to_date = params["todate"].value; this.queryText = this.queryText+" where STORE_ID = "+store_id+" AND TRANSFER_DATE BETWEEN "+from_date+" AND "+to_date