我正在尝试创建一个信息中心，包括显示Google Analytics的一些分析报告。 搜索之后，我找到了以下SO主题：Google Analytics authorization in java
在其中一个答案中，我找到了以下服务帐户示例：
private static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
private static final JsonFactory JSON_FACTORY = new JacksonFactory();
public static Result index() {
GoogleCredential credential = null;
try {
credential = new GoogleCredential.Builder().setTransport(HTTP_TRANSPORT)
.setJsonFactory(JSON_FACTORY)
.setServiceAccountId("2363XXXXXXX@developer.gserviceaccount.com")
.setServiceAccountScopes(AnalyticsScopes.ANALYTICS_READONLY)
.setServiceAccountPrivateKeyFromP12File(new File("/your/path/to/privatekey/privatekey.p12"))
.build();
} catch (GeneralSecurityException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// Set up and return Google Analytics API client.
Analytics analytics = new Analytics.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential).setApplicationName(
"Google-Analytics-Hello-Analytics-API-Sample").build();
String profileId = "";
try {
profileId = getFirstProfileId(analytics);
} catch (IOException e) {
e.printStackTrace();
}
GaData gaData = null;
try {
gaData = executeDataQuery(analytics, profileId);
} catch (IOException e) {
e.printStackTrace();
}
printGaData(gaData);
return ok(index.render("Your new application is ready."));
}
private static String getFirstProfileId(Analytics analytics) throws IOException {
String profileId = null;
// Query accounts collection.
Accounts accounts = analytics.management().accounts().list().execute();
if (accounts.getItems().isEmpty()) {
System.err.println("No accounts found");
} else {
String firstAccountId = accounts.getItems().get(0).getId();
// Query webproperties collection.
Webproperties webproperties =
analytics.management().webproperties().list(firstAccountId).execute();
if (webproperties.getItems().isEmpty()) {
System.err.println("No Webproperties found");
} else {
String firstWebpropertyId = webproperties.getItems().get(0).getId();
// Query profiles collection.
Profiles profiles =
analytics.management().profiles().list(firstAccountId, firstWebpropertyId).execute();
if (profiles.getItems().isEmpty()) {
System.err.println("No profiles found");
} else {
profileId = profiles.getItems().get(0).getId();
}
}
}
return profileId;
}
/**
* Returns the top 25 organic search keywords and traffic source by visits. The Core Reporting API
* is used to retrieve this data.
*
* @param analytics the analytics service object used to access the API.
* @param profileId the profile ID from which to retrieve data.
* @return the response from the API.
* @throws IOException tf an API error occured.
*/
private static GaData executeDataQuery(Analytics analytics, String profileId) throws IOException {
return analytics.data().ga().get("ga:" + profileId, // Table Id. ga: + profile id.
"2012-01-01", // Start date.
"2012-01-14", // End date.
"ga:visits") // Metrics.
.setDimensions("ga:source,ga:keyword")
.setSort("-ga:visits,ga:source")
.setFilters("ga:medium==organic")
.setMaxResults(25)
.execute();
}
/**
* Prints the output from the Core Reporting API. The profile name is printed along with each
* column name and all the data in the rows.
*
* @param results data returned from the Core Reporting API.
*/
private static void printGaData(GaData results) {
System.out.println("printing results for profile: " + results.getProfileInfo().getProfileName());
if (results.getRows() == null || results.getRows().isEmpty()) {
System.out.println("No results Found.");
} else {
// Print column headers.
for (GaData.ColumnHeaders header : results.getColumnHeaders()) {
System.out.printf("%30s", header.getName());
}
System.out.println();
// Print actual data.
for (List<String> row : results.getRows()) {
for (String column : row) {
System.out.printf("%30s", column);
}
System.out.println();
}
System.out.println();
}
}
不幸的是，我似乎无法使其发挥作用。我最终遇到以下异常：
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:385)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
at sun.security.validator.Validator.validate(Validator.java:260)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1320)
... 175 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:196)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:268)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380)
... 181 more
异常发生在以下一行：
analytics.management().accounts().list().execute();
我很确定，我使用了正确的配置并设置了生成私钥的正确路径..
使用OAuth游乐场（https://developers.google.com/oauthplayground/）时，它看起来很简单：
但是找到的文件到处都是，并且不太清楚（对我来说无论如何）..
任何想法如何解决这个问题？非常感谢任何帮助！