Gerando um manifest para um arquivo JAR

Gerando um manifest para um arquivo JAR

Esta dica de Java ilustra um método de gerar um manifest para um arquivo JAR.

try {

<SPAN >// Gerando o manifest de um arquivo </SPAN>
<SPAN >InputStream input = </SPAN><B><SPAN >new </SPAN></B><SPAN >FileInputStream(</SPAN><SPAN >"filename"</SPAN><SPAN >);</SPAN>
<SPAN >Manifest manifest = </SPAN><B><SPAN >new </SPAN></B><SPAN >Manifest(input);</SPAN>


<SPAN >StringBuffer sbuf = </SPAN><B><SPAN >new </SPAN></B><SPAN >StringBuffer();</SPAN>
<SPAN >sbuf.append(</SPAN><SPAN >"Manifest-Version: 1.0\n"</SPAN><SPAN >);</SPAN>
<SPAN >sbuf.append(</SPAN><SPAN >"\n"</SPAN><SPAN >);</SPAN>
<SPAN >sbuf.append(</SPAN><SPAN >"Name: javax/swing/JScrollPane.class\n"</SPAN><SPAN >);</SPAN>
<SPAN >sbuf.append(</SPAN><SPAN >"Java-Bean: True\n"</SPAN><SPAN >);</SPAN>

<SPAN >// string é convertida para uma input stream</SPAN>
<SPAN >InputStream is = </SPAN><B><SPAN >new </SPAN></B><SPAN >ByteArrayInputStream(sbuf.toString().getBytes(</SPAN><SPAN >"UTF-</SPAN><SPAN >                                                                           8"</SPAN><SPAN >));</SPAN>

<SPAN >// Gerando o manifest para os dados de entrada</SPAN>
<SPAN >manifest = </SPAN><B><SPAN >new </SPAN></B><SPAN >Manifest(is);</SPAN>

<SPAN >} </SPAN><B><SPAN >catch </SPAN></B><SPAN >(IOException e) {</SPAN>
<SPAN >}</SPAN>