Exception in thread "main" java.net.UnknownServiceException: no content-type
 at java.net.URLConnection.getContentHandler(URLConnection.java:1192)

主要原因是服务器端没有返回content-type字段，而且SUN JDK作为客户端时没有进行if failed, then guess and try的操作

有两种解决办法：

1. 在服务器端Tomcat 6.0\conf\web.xml加上

    <mime-mapping>
        <extension>wsdl</extension>
        <mime-type>application/xml</mime-type>
    </mime-mapping>

2. 在客户端进行guess and try：

 

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.net.Proxy;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.net.URLStreamHandlerFactory;
import java.util.Date;

import sun.net.www.protocol.http.Handler;

public class GenericContentTypeHttpURLConnection extends sun.net.www.protocol.http.HttpURLConnection {

    public static void main(String[] args) {

        try {

            URL url1 = new URL("file", "localhostA", 89, "D://in.csv");
            URL url2 = new URL("file://localhost:8080/D://in.csv");
            URL url3 = new URL("file://192.168.0.22:8080/axis2/ManageEstablishmentGES.wsdl");
            URLConnection con = url3.openConnection();

            System.out.println("Date : " + new Date(con.getDate()));
            System.out.println("Content Type : " + con.getContentType());
            System.out.println("Content Length : " + con.getContentLength());

            InputStream in = con.getInputStream();

            int j = 0;
            while ((j = in.read()) != -1) {
                System.out.print((char) j);
            }
            in.close();

        } catch (Exception e) {
            System.out.println("Exp in catch : " + e);
        }

    }

    public static Field getField(Class clazz, Class type, boolean instance) {
        Field[] fields = clazz.getDeclaredFields();
        for (int i = 0; i < fields.length; i++) {
            boolean isStatic = Modifier.isStatic(fields[i].getModifiers());
            if (instance != isStatic && fields[i].getType().equals(type)) {
                fields[i].setAccessible(true);
                return fields[i];
            }
        }
        return null;
    }

    public static void install4Common() {
        URLStreamHandlerFactory factory = new java.net.URLStreamHandlerFactory() {

            public URLStreamHandler createURLStreamHandler(String protocol) {
                if (protocol.equals("http")) {
                    URLStreamHandler handler = new URLStreamHandler() {

                        @Override
                        protected URLConnection openConnection(URL u) throws IOException {
                            return new GenericContentTypeHttpURLConnection(u, null);
                        }
                    };

                    return handler;
                }

                return null;
            }
        };
        URL.setURLStreamHandlerFactory(factory);
    }

    public static void install4Eclipse() {
        URLStreamHandlerFactory factory = new java.net.URLStreamHandlerFactory() {

            public URLStreamHandler createURLStreamHandler(String protocol) {
                if (protocol.equals("http")) {
                    URLStreamHandler handler = new URLStreamHandler() {

                        @Override
                        protected URLConnection openConnection(URL u) throws IOException {
                            return new GenericContentTypeHttpURLConnection(u, null);
                        }
                    };

                    return handler;
                }

                return null;
            }
        };

        try {

            Field factoryField = getField(URL.class, URLStreamHandlerFactory.class, false);
            // if (factoryField == null) {
            //            throw new Exception("Could not find URLStreamHandlerFactory field"); //$NON-NLS-1$
            // }
            URLStreamHandlerFactory fac = (URLStreamHandlerFactory) factoryField.get(null);

            if (fac instanceof org.eclipse.osgi.framework.internal.protocol.StreamHandlerFactory) {
                org.eclipse.osgi.framework.internal.protocol.StreamHandlerFactory eclipseStreamHandlerFactory = (org.eclipse.osgi.framework.internal.protocol.StreamHandlerFactory) fac;

                Field parentFactoryField = getField(org.eclipse.osgi.framework.internal.protocol.StreamHandlerFactory.class,
                        URLStreamHandlerFactory.class, true);

                parentFactoryField.set(eclipseStreamHandlerFactory, null);
                parentFactoryField.set(eclipseStreamHandlerFactory, factory);

            } else {
                // for common usecase, set the field of URL.class as StreamHandlerFactory=null
                factoryField.set(null, factory);
            }

        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }

        // URL.setURLStreamHandlerFactory(factory);
    }

    public GenericContentTypeHttpURLConnection(URL arg0, Proxy arg1, Handler arg2) {
        super(arg0, arg1, arg2);
        // TODO Auto-generated constructor stub
    }

    public GenericContentTypeHttpURLConnection(URL arg0, Proxy arg1) {
        super(arg0, arg1);
        // TODO Auto-generated constructor stub
    }

    public GenericContentTypeHttpURLConnection(URL arg0, String arg1, int arg2) {
        super(arg0, arg1, arg2);
        // TODO Auto-generated constructor stub
    }

    @Override
    public Object getContent() throws IOException {
        // TODO Auto-generated method stub
        Object content = null;

        try {
            content = super.getContent();
        } catch (Exception e) {
            // e.printStackTrace();
            sun.net.www.content.text.Generic generic = new sun.net.www.content.text.Generic();
            content = generic.getContent(this);
        }

        return content;
    }

}

http://s8/middle/702c40664963659f9bbb7&690"no content-type" 客户端解决办法" />

 

 

 

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