取Google地址本(gdata api)

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取Google地址本(gdata api)

2013年12月13日 ⁄ 综合 ⁄ 共 11071字 ⁄ 字号小中大 ⁄ 评论关闭

一、Google Data API

为取存google各个服务的相关数据提供接口

http://code.google.com/intl/zh-CN/apis/gdata/

google data api依赖

见http://code.google.com/intl/zh-CN/apis/gdata/articles/java_client_lib.html
==============
activation.jar
mail.jar
servlet-api.jar

二、Google Contacts API

gdata-contacts依赖

见http://code.google.com/intl/zh-CN/apis/contacts/docs/2.0/developers_guide_java.html
======================
gdata-base-1.0.jar
gdata-core-1.0.jar
gdata-client-1.0.jar

gdata-client-meta-1.0.jar
google-collect-1.0-rc3.jar (google collect包，见http://code.google.com/p/google-collections/)

三、取联系人信息

@SuppressWarnings("serial") public class HttpServerException extends Exception { public HttpServerException() { super(); } public HttpServerException(String error) { super(error); } public HttpServerException(Throwable t) { super(t); } public HttpServerException(String error, Throwable t) { super(error, t); } }

public class ContactInfo implements Serializable { private static final long serialVersionUID = 5530203198421462152L; private final String username; private final String address; //email & qq etc. public ContactInfo(String username, String address) { this.username = username; this.address = address; } public String getUsername() { return username; } public String getAddress() { return address; } public String toString() { return "[" + username + "," + address + "]"; } }

import java.io.IOException; import java.net.URL; import java.util.ArrayList; import java.util.List; import com.google.gdata.client.contacts.ContactsService; import com.google.gdata.data.contacts.ContactEntry; import com.google.gdata.data.contacts.ContactFeed; import com.google.gdata.data.extensions.Email; import com.google.gdata.util.AuthenticationException; import com.google.gdata.util.ServiceException; public class MailGoogleContactFetcher { private final ContactsService contactsService; private final String fetchUrl; public MailGoogleContactFetcher(String username, String password) { super(username, password); contactsService = new ContactsService("ContactList"); fetchUrl = "http://www.google.com/m8/feeds/contacts/" + username + "/full"; } @Override public void doLogin() throws HttpServerException { try { contactsService.setUserCredentials(username, password); } catch (AuthenticationException e) { throw new HttpServerException(e); } } @Override public List<ContactInfo> fetchContactInfo() throws HttpServerException { List<ContactInfo> data = new ArrayList<ContactInfo>(); try { URL feedUrl = new URL(fetchUrl); ContactFeed resultFeed = contactsService.getFeed(feedUrl, ContactFeed.class); for (int i = 0; i < resultFeed.getEntries().size(); i++) { ContactEntry entry = resultFeed.getEntries().get(i); String fullName = entry.getName().getFullName().getValue(); StringBuilder email = new StringBuilder(); List<Email> emails = entry.getEmailAddresses(); for (int j = 0; j < emails.size(); j++) { String addr = emails.get(j).getAddress().toString(); if (j != emails.size() - 1) { email.append(addr + ","); } else { email.append(addr); } } data.add(new ContactInfo(fullName, email.toString())); } } catch (IOException e) { throw new HttpServerException(e); } catch (ServiceException e) { throw new HttpServerException(e); } return data; } }

这样连接会出现SSL问题，即：

[java] Caused by:
sun.security.validator.ValidatorException: PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

请见http://code.google.com/intl/zh-CN/apis/gdata/articles/wireshark.html#problem

添加SSLUtilities类：

http://en.wikibooks.org/wiki/WebObjects/Web_Services/How_to_Trust_Any_SSL_Certificate

import java.security.GeneralSecurityException; import java.security.SecureRandom; import java.security.cert.X509Certificate; import javax.net.ssl.HostnameVerifier; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; /** * This class provide various static methods that relax X509 certificate and * hostname verification while using the SSL over the HTTP protocol. * * @author Francis Labrie */ public final class SSLUtilities { /** * Hostname verifier for the Sun's deprecated API. * * @deprecated see {@link #_hostnameVerifier}. */ private static com.sun.net.ssl.HostnameVerifier __hostnameVerifier; /** * Thrust managers for the Sun's deprecated API. * * @deprecated see {@link #_trustManagers}. */ private static com.sun.net.ssl.TrustManager[] __trustManagers; /** * Hostname verifier. */ private static HostnameVerifier _hostnameVerifier; /** * Thrust managers. */ private static TrustManager[] _trustManagers; /** * Set the default Hostname Verifier to an instance of a fake class that * trust all hostnames. This method uses the old deprecated API from the * com.sun.ssl package. * * @deprecated see {@link #_trustAllHostnames()}. */ private static void __trustAllHostnames() { // Create a trust manager that does not validate certificate chains if (__hostnameVerifier == null) { __hostnameVerifier = new _FakeHostnameVerifier(); } // if // Install the all-trusting host name verifier com.sun.net.ssl.HttpsURLConnection .setDefaultHostnameVerifier(__hostnameVerifier); } // __trustAllHttpsCertificates /** * Set the default X509 Trust Manager to an instance of a fake class that * trust all certificates, even the self-signed ones. This method uses the * old deprecated API from the com.sun.ssl package. * * @deprecated see {@link #_trustAllHttpsCertificates()}. */ private static void __trustAllHttpsCertificates() { com.sun.net.ssl.SSLContext context; // Create a trust manager that does not validate certificate chains if (__trustManagers == null) { __trustManagers = new com.sun.net.ssl.TrustManager[] { new _FakeX509TrustManager() }; } // if // Install the all-trusting trust manager try { context = com.sun.net.ssl.SSLContext.getInstance("SSL"); context.init(null, __trustManagers, new SecureRandom()); } catch (GeneralSecurityException gse) { throw new IllegalStateException(gse.getMessage()); } // catch com.sun.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(context .getSocketFactory()); } // __trustAllHttpsCertificates /** * Return true if the protocol handler property java. protocol.handler.pkgs * is set to the Sun's com.sun.net.ssl. internal.www.protocol deprecated * one, false otherwise. * * @return true if the protocol handler property is set to the Sun's * deprecated one, false otherwise. */ private static boolean isDeprecatedSSLProtocol() { return ("com.sun.net.ssl.internal.www.protocol".equals(System .getProperty("java.protocol.handler.pkgs"))); } // isDeprecatedSSLProtocol /** * Set the default Hostname Verifier to an instance of a fake class that * trust all hostnames. */ private static void _trustAllHostnames() { // Create a trust manager that does not validate certificate chains if (_hostnameVerifier == null) { _hostnameVerifier = new FakeHostnameVerifier(); } // if // Install the all-trusting host name verifier: HttpsURLConnection.setDefaultHostnameVerifier(_hostnameVerifier); } // _trustAllHttpsCertificates /** * Set the default X509 Trust Manager to an instance of a fake class that * trust all certificates, even the self-signed ones. */ private static void _trustAllHttpsCertificates() { SSLContext context; // Create a trust manager that does not validate certificate chains if (_trustManagers == null) { _trustManagers = new TrustManager[] { new FakeX509TrustManager() }; } // if // Install the all-trusting trust manager: try { context = SSLContext.getInstance("SSL"); context.init(null, _trustManagers, new SecureRandom()); } catch (GeneralSecurityException gse) { throw new IllegalStateException(gse.getMessage()); } // catch HttpsURLConnection.setDefaultSSLSocketFactory(context .getSocketFactory()); } // _trustAllHttpsCertificates /** * Set the default Hostname Verifier to an instance of a fake class that * trust all hostnames. */ public static void trustAllHostnames() { // Is the deprecated protocol setted? if (isDeprecatedSSLProtocol()) { __trustAllHostnames(); } else { _trustAllHostnames(); } // else } // trustAllHostnames /** * Set the default X509 Trust Manager to an instance of a fake class that * trust all certificates, even the self-signed ones. */ public static void trustAllHttpsCertificates() { // Is the deprecated protocol setted? if (isDeprecatedSSLProtocol()) { __trustAllHttpsCertificates(); } else { _trustAllHttpsCertificates(); } // else } // trustAllHttpsCertificates /** * This class implements a fake hostname verificator, trusting any host * name. This class uses the old deprecated API from the com.sun. ssl * package. * * @author Francis Labrie * * @deprecated see {@link SSLUtilities.FakeHostnameVerifier}. */ public static class _FakeHostnameVerifier implements com.sun.net.ssl.HostnameVerifier { /** * Always return true, indicating that the host name is an acceptable * match with the server's authentication scheme. * * @param hostname * the host name. * @param session * the SSL session used on the connection to host. * @return the true boolean value indicating the host name is trusted. */ public boolean verify(String hostname, String session) { return (true); } // verify } // _FakeHostnameVerifier /** * This class allow any X509 certificates to be used to authenticate the * remote side of a secure socket, including self-signed certificates. This * class uses the old deprecated API from the com.sun.ssl package. * * @author Francis Labrie * * @deprecated see {@link SSLUtilities.FakeX509TrustManager}. */ public static class _FakeX509TrustManager implements com.sun.net.ssl.X509TrustManager { /** * Empty array of certificate authority certificates. */ private static final X509Certificate[] _AcceptedIssuers = new X509Certificate[] {}; /** * Always return true, trusting for client SSL chain peer certificate * chain. * * @param chain * the peer certificate chain. * @return the true boolean value indicating the chain is trusted. */ public boolean isClientTrusted(X509Certificate[] chain) { return (true); } // checkClientTrusted /** * Always return true, trusting for server SSL chain peer certificate * chain. * * @param chain * the peer certificate chain. * @return the true boolean value indicating the chain is trusted. */ public boolean isServerTrusted(X509Certificate[] chain) { return (true); } // checkServerTrusted /** * Return an empty array of certificate authority certificates which are * trusted for authenticating peers. * * @return a empty array of issuer certificates. */ public X509Certificate[] getAcceptedIssuers() { return (_AcceptedIssuers); } // getAcceptedIssuers } // _FakeX509TrustManager /** * This class implements a fake hostname verificator, trusting any host * name. * * @author Francis Labrie */ public static class FakeHostnameVerifier implements HostnameVerifier { /** * Always return true, indicating that the host name is an acceptable * match with the server's authentication scheme. * * @param hostname * the host name. * @param session * the SSL session used on the connection to host. * @return the true boolean value indicating the host name is trusted. */ public boolean verify(String hostname, javax.net.ssl.SSLSession session) { return (true); } // verify } // FakeHostnameVerifier /** * This class allow any X509 certificates to be used to authenticate the * remote side of a secure socket, including self-signed certificates. * * @author Francis Labrie */ public static class FakeX509TrustManager implements X509TrustManager { /** * Empty array of certificate authority certificates. */ private static final X509Certificate[] _AcceptedIssuers = new X509Certificate[] {}; /** * Always trust for client SSL chain peer certificate chain with any * authType authentication types. * * @param chain * the peer certificate chain. * @param authType * the authentication type based on the client certificate. */ public void checkClientTrusted(X509Certificate[] chain, String authType) { } // checkClientTrusted /** * Always trust for server SSL chain peer certificate chain with any * authType exchange algorithm types. * * @param chain * the peer certificate chain. * @param authType * the key exchange algorithm used. */ public void checkServerTrusted(X509Certificate[] chain, String authType) { } // checkServerTrusted /** * Return an empty array of certificate authority certificates which are * trusted for authenticating peers. * * @return a empty array of issuer certificates. */ public X509Certificate[] getAcceptedIssuers() { return (_AcceptedIssuers); } // getAcceptedIssuers } // FakeX509TrustManager } // SSLUtilities

【上篇】Windows程式开发设计指南（十八）Metafile
【下篇】社员交流与培训活动

作者: hesitant

该日志由 hesitant 于10年前发表在综合分类下，最后更新于 2013年12月13日.
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取Google地址本(gdata api)

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