developerguide.html

一个用jsp开发的文件上传系统。利用javabean来实现的。来练习javabean.是一个完整系统

                              &nbsp;&nbsp;Properties props = new Properties();<br>
                              &nbsp;&nbsp;props.put(&quot;<b>user</b>&quot;,&quot;<b>test</b>&quot;);<br>
                              &nbsp;&nbsp;props.put(&quot;<b>password</b>&quot;,&quot;<b>test</b>&quot;);<br>
                              &nbsp;&nbsp;<b>upBean</b>.<font color="#FF0000"><b>setDatabasestore</b>(&quot;</font><b>oracle.jdbc.driver.OracleDriver</b><font color="#FF0000">&quot;,<br>
                              &nbsp;&nbsp;</font></font></font></font></font></font></font></font></font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1" color="#FF0000">&nbsp;&quot;</font><font size="-1"><b>jdbc:oracle:thin:@mydbhost:1521:ORCL</b><font color="#FF0000">&quot;,</font> 
                              <b>props</b><font color="#FF0000">);</font><br>
                              %&gt;<br>
                              &lt;/jsp:useBean&gt;</font></font></font></font></font></font></font></font></td>
                          </tr>
                        </table>
                      </td>
                    </tr>
                  </table>
                  <p><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><u><font size="-2"><b><font color="#333333">Notes</font></b></font></u><font color="#333333"><b><font size="-2"> 
                    : </font></b><font size="-2"><br>
                    1 - &quot;scope=application&quot; is recommended to avoid 
                    multiples database connections.&quot;scope=session is acceptable 
                    small amount of users. &quot;scope=request&quot; is not recommended 
                    without JDBC ConnectionPool.<br>
                    2 - <b>UploadBean won't close the database connection</b>. 
                    You can do it when needed by calling :<br>
                    upBean.getDatabasestore().close(</font></font></font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font color="#333333"><font size="-2">)<br>
                    3 - </font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-2">A 
                    full sample is available through <a href="../DatabaseUpload.jsp">DatabaseUpload.jsp</a></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><br>
                    <font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font color="#333333"><font size="-2">4 
                    - </font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif">For 
                    DB2 script see <a href="sql/upload_db2.sql">upload_db2.sq</a>l, 
                    for PostGreSQL see <a href="sql/upload_postgresql.sql">upload_postgresql.sql</a> 
                    and for MySQL script see <a href="sql/upload_mysql.sql">upload_mysql.sql</a></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><br>
                    <font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font color="#333333"><font size="-2">5 
                    - </font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif">If 
                    UploadBean database store does not suit to your needs then 
                    you could implement your own <a href="api.html">DBStore</a>. 
                    A sample is available in&nbsp;<a href="http://www.javazoom.net/jzservlets/uploadbean/uploadbeantools.html">add-ons</a> 
                    section.<br>
                    </font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><font size="-1"><br>
                    </font></font></font></font></font></font></font></font></p>
                  <table width="100%" border="0" cellspacing="1" cellpadding="1">
                    <tr> 
                      <td valign="top" bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><b><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><b><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><b><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font color="#FF0000"><img src="img/right_red-arrow.gif" width="18" height="14" align="absmiddle">&nbsp;</font></font></font></font></font></font></b></font></font></font></font></font></font></font></font></font></font></b></font></font></font></font></font><font color="#FF0000">Memory 
                        </font></font></font><font color="#FF0000">:</font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><b><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><b><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font color="#FF0000"><a name="memory"></a></font></font></font></font></b></font></font></font></font></font></font></font></font></b></font></font></font></font></font></font></font></font></b></font></font></font></font></font></td>
                    </tr>
                  </table>
                  <p><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><b><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><img src="img/memory2.gif" width="41" height="44" align="left"></font></font></b></font></font></font></font></font><font face="Verdana, Arial, Helvetica, sans-serif" size="-1">UploadBean 
                    can store uploaded files in JVM memory. Uploaded files will 
                    be stored in a &quot;Vector&quot; object. This is a vector 
                    of &quot;UploadFile&quot; objects (see <a href="api/index.html" target="_top">API</a> 
                    to learn more).<br>
                    <br>
                    One method is available to initialize the memory store :<br>
                    </font></font></font></font></font></font></font></font></font></p>
                  <ul>
                    <li><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1">public 
                      void <b>setStoremodel</b>(int storeid)<br>
                      <font color="#666666">Input parameter is a store identifier 
                      for MEMORYSTORE.</font></font></font></font></font></font></font></font></font></font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><br>
                      </font></font></font></font></font></font></font></font></font></li>
                  </ul>
                  <p><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1">Here 
                    is a sample.</font><br>
                    </font></font></font></font></font></font></font></font></p>
                  <table width="100%" border="0" cellspacing="1" cellpadding="1">
                    <tr> 
                      <td bgcolor="#333333"> 
                        <table width="100%" border="0" cellspacing="0" cellpadding="0">
                          <tr> 
                            <td bgcolor="#EEEEEE"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1">&lt;jsp:useBean 
                              id=&quot;upBean&quot; scope=&quot;session&quot; 
                              class=&quot;javazoom.upload.UploadBean&quot;&gt;<br>
                              &nbsp;&nbsp;&lt;jsp:setProperty name=&quot;<b>upBean</b>&quot; 
                              property=&quot;<b><font color="#FF0000">storemodel</font></b>&quot;<br>
                              &nbsp;&nbsp; value=&quot;<b>&lt;%= UploadBean.MEMORYSTORE 
                              %&gt;</b>&quot; /&gt;</font></font></font></font></font></font></font></font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><br>
                              &lt;/jsp:useBean&gt;</font></font></font></font></font></font></font></font></td>
                          </tr>
                        </table>
                      </td>
                    </tr>
                  </table>
                  <p><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><u><font size="-2"><b><font color="#333333">Notes</font></b></font></u><font color="#333333"><b><font size="-2"> 
                    : </font></b><font size="-2"><br>
                    1 - Using memory store without &quot;scope=session&quot; or 
                    </font><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font face="Verdana, Arial, Helvetica, sans-serif" size="-1"><font size="-2"><font face="Verdana, Arial, Helvetica, sans-serif"><font face="Verdana, Arial, Helvetica, sans-serif"><font size="-1"><font color="#333333"><font size="-2">&quot;scope=application&quot;</font></font></font></font></font></font></font></font></font></font><font size="-2"> 
                    is not really useful.<br>
                    2 - You can access the memory store through upBean.getMemorystore().<br>