xpath_wizard.jsp

来自「jakarta-taglibs」· JSP 代码 · 共 201 行

JSP
201 行
字号 
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<%@ taglib uri="http://jakarta.apache.org/taglibs/xtags-1.0" prefix="xtags" %>
<%@ page import="java.io.*" %>
<%@ page import="java.net.*" %>
<%@ page import="java.util.*" %>
<%@ page import="org.dom4j.*" %>
<%@ page import="org.dom4j.io.*" %>
<%@ page import="org.apache.taglibs.xtags.util.StringHelper" %>
  <head>
  </head>
  <body>

    <h2>XPath evaluator</h2>

    <p>This will evaluate an XPath expression on a given document
    (which can be any valid URL to an XML document)
    and an optional context XPath expression.  
    The context XPath expression allows an XPath expression to be 
    applied to a certain part of the document.</p>

    <br />

<%
    String uri = request.getParameter("uri");
    if ( uri == null ) {
        //uri = "http://p.moreover.com/cgi-local/page?c=Java%20news&o=rss";
        uri = "/much_ado.xml";
    }
    String contextPath = request.getParameter("contextPath");
    if ( contextPath == null ) {
        contextPath = ".";
    }
    String path = request.getParameter("path");
    if ( path == null ) {
        path = "//STAGEDIR";
    }
    String sortText = request.getParameter("sort");
    boolean sort = false;
    if ( sortText == null ) {
        sortText = "";
    }
    else {
        sort = sortText.equalsIgnoreCase( "true" );
    }
    String sortPath = request.getParameter("sortPath");
    if ( sortPath == null ) {
        sortPath = ".";
    }
    String distinctText = request.getParameter("distinct");
    boolean distinct = false;
    if ( distinctText == null ) {
        distinctText = "";
    }
    else {
        distinct = distinctText.equalsIgnoreCase( "true" );
    }
%>

    <form method="GET" action="<%= request.getRequestURI() %>">
      <table cellspacing="0" cellpadding="4" bgcolor="#000000" border="1" width="100%">
        <tr>
            <td bgcolor="#dddddd">
                Document URI
            </td>
            <td bgcolor="#eeeeee" colspan="3">
                <input type="text" name="uri" value="<%= uri %>" size="100"/>
            </td>
        </tr>
        <tr>
            <td bgcolor="#dddddd">
                Context XPath expression 
            </td>
            <td bgcolor="#eeeeee" colspan="3">
                <input type="text" name="contextPath" value="<%= contextPath %>" size="100"/>
            </td>
        </tr>
        <tr>
            <td bgcolor="#dddddd">
                XPath expression to process
            </td>
            <td bgcolor="#eeeeee" colspan="3">
                <input type="text" name="path" value="<%= path %>" size="100"/>
            </td>
        </tr>
        <tr>
            <td bgcolor="#dddddd">
                Sort results
                <input type="checkbox" name="sort" value="true"
                <% if ( sort ) out.print( " checked " ); %>
                />
            </td>
            <td bgcolor="#dddddd">
                Sort by XPath expression
            </td>
            <td bgcolor="#eeeeee">
                <input type="text" name="sortPath" value="<%= sortPath %>"/>
            </td>
            <td bgcolor="#dddddd">
                Distinct values (when sorting)
                <input type="checkbox" name="distinct" value="true"
                <% if ( distinct ) out.print( " checked " ); %>
                />
            </td>
        </tr>
        <tr>
            <td bgcolor="#dddddd" colspan="4" align="center">
              <input type="SUBMIT" value="Evaluate" />
            </td>
        </tr>
      </table>
    </form>

    <br >

<%
    String fullURI = uri;
    boolean isFullURL = true;
    if ( uri != null && uri.length() > 0 ) {
        // if no absolute URL is being used
        if ( uri.indexOf( ':' ) < 0 ) {
            isFullURL = false;
            String root = request.getContextPath();
            if ( root != null ) {
                fullURI = root + uri;
            }
        }

        String asXmlUrl = "";
        if ( path != null && path.length() > 0 ) {
            asXmlUrl = "xpath.xml?uri=" 
                + java.net.URLEncoder.encode(uri)
                + "&path=" + path + "&contextPath=" + contextPath;
            if ( sortPath != null ) {
                asXmlUrl += "&sortPath=" + sortPath;
            }
            if ( sort ) {
                asXmlUrl += "&sort=true";
            }
            if ( distinct ) {
                asXmlUrl += "&distinct=true";
            }
        }
%>

    <h3>
    <a href="<%= fullURI %>" target="xml.source">View source XML</a>
    </h3>

    <h3>
    <a href="<%= asXmlUrl %>" target="xml.results">View results as XML</a>
    </h3>

   <br />

    <h3>Results</h3>

    <table width="100%" cellspacing="0" cellpadding="2" bgcolor="#000000" border="1">

<%
    System.out.println( "About to parse: " + uri );
    if ( isFullURL ) {
%>
      <xtags:parse url="<%= uri %>"/>
<%
    }
    else {
%>
      <xtags:parse uri="<%= uri %>"/>
<%
    }
%>

      <xtags:forEach id="result" select="<%= path %>" sort="<%= ( sort ) ? sortPath : null %>" distinct="<%= distinct %>">

<%
          String text = "";
          if ( result instanceof String ) {
              text = (String) result;
          }
          else if ( result instanceof Node ) {
              Node node = (Node) result;
              text = StringHelper.encodeHTML(node.asXML());
          }
          else if ( result != null ) {
              text = result.toString();
          }
%>
        <tr bgcolor="#eeeeee">
          <td><%= text %></td>
        </tr>

      </xtags:forEach>
<%
    }
%>
    </table>
  </body>

</html>

xpath_wizard.jsp - 源码说明

本页面展示了「jakarta-taglibs」中的 xpath_wizard.jsp 源码文件，采用 JSP 编程语言编写，共 201 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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