如何使用java访问github graphql API
我需要访问github graphql API
才能获取有关某个存储库的某些数据。下面curl
命令工作正常如何使用java访问github graphql API
curl -i -H "Authorization: bearer myGithubToken" -X POST -d '{"query": "query { repository(owner: \"wso2-extensions\", name: \"identity-inbound-auth-oauth\") { object(expression:\"83253ce50f189db30c54f13afa5d99021e2d7ece\") { ... on Commit { blame(path: \"components/org.wso2.carbon.identity.oauth.endpoint/src/main/java/org/wso2/carbon/identity/oauth/endpoint/authz/OAuth2AuthzEndpoint.java\") { ranges { startingLine endingLine age commit { message url history(first: 2) { edges { node { message url } } } author { name email } } } } } } } }"}' https://api.github.com/graphql
现在我需要调用Java
一样,我需要处理的输出。这里是我试过的代码,
public void callGraphqlApi(){
CloseableHttpClient httpClientForGraphql = null;
CloseableHttpResponse httpResponseFromGraphql= null;
httpClientForGraphql=HttpClients.createDefault();
HttpPost httpPost= new HttpPost("https://api.github.com/graphql");
String query= "query\":\"query { repository(owner: \"wso2-extensions\", name:\"identity-inbound-auth-oauth\") { object(expression: \"83253ce50f189db30c54f13afa5d99021e2d7ece\") { ... on Commit { blame(path: \"components/org.wso2.carbon.identity.oauth.endpoint/src/main/java/org/wso2/carbon/identity/oauth/endpoint/authz/OAuth2AuthzEndpoint.java\") { ranges { startingLine endingLine age commit { message url history(first: 2) { edges { node { message url } } } author { name email } } } } } } } }";
httpPost.addHeader("Authorization","Bearer myGithubToken");
try {
StringEntity params= new StringEntity(query);
httpPost.addHeader("content-type","application/x-www-form-urlencoded");
httpPost.setEntity(params);
httpResponseFromGraphql= httpClientForGraphql.execute(httpPost);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
当我调试的代码,它给我这个错误,
HttpResponseProxy {HTTP/1.1 400错误的请求[服务器:GitHub.com,日期:星期五,2017年2月3日12:14:58 GMT,Content-Type:application/json; charset = utf-8,Content-Length:89,Status:400 Bad Request,X-RateLimit-Limit:200,X-RateLimit-Remaining:187,X-RateLimit-Reset:1486125149,X-OAuth-Scopes:repo,用户,X-Accepted-OAuth-Scopes:回购,X-GitHub-Media-Type:github.v3;格式= json,Access-Control-Expose-Headers:ETag,Link,X-GitHub-OTP,X-RateLimit-Limit,X-RateLimit-Remaining,X-RateLimit-Reset,X-OAuth-Scopes,X-Accepted- OAuth-Scopes,X-Poll-Interval,Access-Control-Allow-Origin:*,Content-Security-Policy:default-src'none',Strict-Transport-Security:max-age = 31536000; includeSubdomains;预加载,X-Content-Type-Options:nosniff,X-Frame-Options:拒绝,X-XSS-Protection:1; mode = block,X-GitHub-Request-Id:CF0A:0EE1:B057F26:EBCB8DF:58947441] ResponseEntityProxy {[Content-Type:application/json; charset = utf-8,Content-Length:89,Chunked:false]}}
我在做什么错?你能不能帮我解决这个问题。 在此先感谢
通过更改上面的代码得到程序工作如下。使用JSON
库来创建像上面这样的复杂JSON
是一种很好的做法,除了大多数情况下手动创建它以外,复杂的手动创建可能会导致很多麻烦。
import org.json.JSONObject;
public void callingGraph(){
CloseableHttpClient client= null;
CloseableHttpResponse response= null;
client= HttpClients.createDefault();
HttpPost httpPost= new HttpPost("https://api.github.com/graphql");
httpPost.addHeader("Authorization","Bearer myToken");
httpPost.addHeader("Accept","application/json");
JSONObject jsonObj = new JSONObject();
jsonobj.put("query", "{repository(owner: \"wso2-extensions\", name: \"identity-inbound-auth-oauth\") { object(expression: \"83253ce50f189db30c54f13afa5d99021e2d7ece\") { ... on Commit { blame(path: \"components/org.wso2.carbon.identity.oauth.endpoint/src/main/java/org/wso2/carbon/identity/oauth/endpoint/authz/OAuth2AuthzEndpoint.java\") { ranges { startingLine, endingLine, age, commit { message url history(first: 2) { edges { node { message, url } } } author { name, email } } } } } } } }");
try {
StringEntity entity= new StringEntity(jsonObj.toString());
httpPost.setEntity(entity);
response= client.execute(httpPost);
}
catch(UnsupportedEncodingException e){
e.printStackTrace();
}
catch(ClientProtocolException e){
e.printStackTrace();
}
catch(IOException e){
e.printStackTrace();
}
try{
BufferedReader reader= new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String line= null;
StringBuilder builder= new StringBuilder();
while((line=reader.readLine())!= null){
builder.append(line);
}
System.out.println(builder.toString());
}
catch(Exception e){
e.printStackTrace();
}
}
我看起来像你的JSON是无效的:如果有查询字符串开始= “{\” 查询\ “:\” 查询{,不串查询= “查询\”:\“查询{ – peinearydevelopment
@peinearydevelopment经过它仍然是一样的错误:( –