ars*_*nal 34 java jquery dom xml-parsing
我试图通过在jsp中编写一些代理代码,从我的计算机本地对其他域进行ajax调用.这是我调用proxy.jsp页面的jQuery AJAX代码.
var metadata = 'https://rest-search.host.com/machine/search/meta?id=';
var on_show_info= function() {
var AjaxCall = data + current_doc_info.id;
alert(AjaxCall);
request_meta_info = $.ajax({
url: "proxy.jsp?url=" + AjaxCall,
type: 'GET',
success: check,
error: error
});
};
我的JSP文件是: -
<%@ page language="java" import="org.w3c.dom.*,javax.xml.parsers.DocumentBuilder,javax.xml.parsers.DocumentBuilderFactory,java.net.*,java.io.*" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%
String urlToQuery = request.getParameter("url");
System.out.println("rj " +urlToQuery);
URL url = new URL(urlToQuery);
final String login ="user";
final String password ="pass";
Authenticator.setDefault(new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication (login, password.toCharArray());
}
});
URLConnection conn = url.openConnection();
InputStream in = conn.getInputStream();
DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance();
DocumentBuilder db =dbf.newDocumentBuilder();
Document doc=db.parse(urlToQuery);
NodeList nl= doc.getElementsByTagName("attr");
%>
<%= nl.item(0).getFirstChild().getNodeValue() %>
当我检查响应时,我收到它正在解析的XML文件的错误:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>
<title>Error 500 White spaces are required between publicId and systemId.</title>
</head>
<body><h2>HTTP ERROR 500</h2>
<p>Problem accessing /proxy.jsp. Reason:
<pre> White spaces are required between publicId and systemId.</pre></p><h3>Caused by:</h3><pre>org.xml.sax.SAXParseException: White spaces are required between publicId and systemId.
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:180)
at org.apache.jsp.proxy_jsp._jspService(org.apache.jsp.proxy_jsp:70)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:213)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:171)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:381)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:67)
at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:122)
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:110)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:536)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:915)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
</pre>
<hr /><i><small>Powered by Jetty://</small></i><br/>
</body>
</html>
而XMl文件是这样的: -
<results><result><attr value="HW/SW" name="Line"/><attr value="ASIC" name="Description"/><attr value="CD" name="Number"/><attr value="AS" name="DocumentType"/><attr value="" name="Date"/><</result></results>
我在这做什么错..任何建议都将受到赞赏..
小智 34
如果不明显,错误消息实际上是正确的.它表示您的DOCTYPE必须具有SYSTEM标识符.我假设你的只有一个公共标识符.
你会得到错误(例如):
<!DOCTYPE persistence PUBLIC
"http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
你不会:
<!DOCTYPE persistence PUBLIC
"http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" "">
请注意""第二个结尾 - 这是系统标识符.错误消息令人困惑:它应该说您需要系统标识符,而不是您需要publicId和(不存在的)systemId之间的空格.
顺便说一句,一个空的系统标识符可能并不理想,但它可能足以让你移动.
小智 5
我刚刚发现自己遇到了这个异常，我试图使用一个 JAX-WS，使用一个像这样的自定义 URL：
String WSDL_URL= <get value from properties file>;
Customer service = new Customer(new URL(WSDL_URL));
ExecutePtt port = service.getExecutePt();
return port.createMantainCustomers(part);
和Java抛出：
XML reader error: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,63]
Message: White spaces are required between publicId and systemId.
事实证明，用于构建服务的 URL 字符串末尾缺少“?wsdl”。例如：
坏的：
http://www.host.org/service/Customer
好的：
http://www.host.org/service/Customer?wsdl
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