1.去
http://barcode4j.sourceforge.net/下載文件,(源代碼和生成好的都要
下載)
2.解壓barcode4j-2.0alpha2-bin.zip這個包，在build目錄下有barcode4j.jar，在lib目錄下有avalon-framework-4.2.0.jar， 將barcode4j.jar和avalon-framework-4.2.0.jar添加到項目的lib中,eclipse中只要復制到web-inf下面的lib里面就OK了.
3.解壓將barcode4j-2.0alpha2-src.zip，將srcjavaorgkrysalisbarcode4jservlet目錄下的BarcodeServlet.java類的代碼拷出來，修改默認的圖片顯示方式，找到 if (format == null) format = MimeTypes.MIME_JPEG;這一行,表示默認的格式為JPEG文件
4.將以下這段servlet配置在web.xml中
<servlet>
<servlet-name>BarcodeServlet</servlet-name>
<servlet-class>com.yourname.BarcodeServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>BarcodeServlet</servlet-name>
<url-pattern>/barcode</url-pattern>
</servlet-mapping>
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5.在頁面中添加<img src="<%=request.getContextPath() %>/barcode?msg=12345678" height="50px" width=130px/>
type是生成條形碼的類型:
看例子就明白了
<table border="1">
<tr>
<td>
<h1>code39</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=0123456789&type=code39" height="100px" width=300px/>
</td>
<td>
<h1>code128</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=0123456789&type=code128" height="100px" width=300px/>
</td>
<td>
<h1>Codabar</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=0123456789&type=codabar" height="100px" width=300px/>
</td>
</tr>
<tr>
<td>
<h1>intl2of5</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=01234567890540&type=intl2of5" height="100px" width=300px/>
</td>
<td>
<h1>upc-a</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=012345678912&type=upc-a" height="100px" width=300px/>
</td>
<td>
<h1>ean-13</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=200123457893&type=ean-13" height="100px" width=300px/>
</td>
<td>
<h1>ean-8</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=20123451&type=ean-8" height="100px" width=300px/>
</td>
</tr>
<tr>
<td>
<h1>postnet</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=01234567890540&type=postnet" height="100px" width=300px/>
</td>
<td>
<h1>royal-mail-cbc</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=012345AS678912&type=royal-mail-cbc" height="100px" width=300px/>
</td>
<td>
<h1>pdf417</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=200123457893&type=pdf417" height="100px" width=300px/>
</td>
<td>
<h1>datamatrix</h1>
<img src="<%=request.getContextPath()%>/barcode?msg=20123451&type=datamatrix" height="100px" width=300px/>
</td>
</tr>
</table>
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