Java中的Parse.com REST API（非Android）

Question

I am trying to use the Parse.com REST API in Java. I have gone through the 4 solutions given here https://parse.com/docs/api_libraries and have selected Parse4J. After importing the source into Netbeans, along with importing the following libraries (which Netbeans told me I needed):

org.slf4j:slf4j-api:jar:1.6.1
org.apache.httpcomponents:httpclient:jar:4.3.2
org.apache.httpcomponents:httpcore:jar:4.3.1
org.json:json:jar:20131018
commons-codec:commons-codec:jar:1.9
junit:junit:jar:4.11
ch.qos.logback:logback-classic:jar:0.9.28
ch.qos.logback:logback-core:jar:0.9.28

I ran the example code from https://github.com/thiagolocatelli/parse4j

Parse.initialize(APP_ID, APP_REST_API_ID); // I replaced these with mine

ParseObject gameScore = new ParseObject("GameScore");
gameScore.put("score", 1337);
gameScore.put("playerName", "Sean Plott");
gameScore.put("cheatMode", false);
gameScore.save();

And I got that it was missing org.apache.commons.logging, so I downloaded that and imported it. Then I ran the code again and got

Exception in thread "main" java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log(Lorg/slf4j/Marker;Ljava/lang/String;ILjava/lang/String;Ljava/lang/Throwable;)V
at org.apache.commons.logging.impl.SLF4JLocationAwareLog.debug(SLF4JLocationAwareLog.java:120)
at org.apache.http.client.protocol.RequestAddCookies.process(RequestAddCookies.java:122)
at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:131)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:193)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:85)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
at org.parse4j.command.ParseCommand.perform(ParseCommand.java:44)
at org.parse4j.ParseObject.save(ParseObject.java:450)

I could probably fix this with another import, but I suppose then something else would pop up. I tried the other libraries with similar results, missing a bunch of libraries. Has anyone actually used the Parse.com REST API successfully in Java? If so, I would be grateful if you shared which library/s you used and anything else required to get it going successfully.

Please do not suggest anything you have not tried. It will probably get me going in circles again.

I am using Netbeans.

Thanks.

Answer 1

You may have the parse docs confused. Your title says "Rest API" . Yet , your code's from the parse ANDROID SDK!

1. figure out what interface at parse you will use and then use it ( ANDROID OR REST )

2. dont mix Android code into a Java/HTTP/REST client to parse.com

3. Practice some of the curl CLI examples out of the REST API manual and you will know what sequence ( put them into a shell script ) of native command line http/curl expressions you want to submit to parse.

4. learn how to implement native httpclient in your java . I would suggest some kind of async callbacks

5. transfer the sequence of Curl command line calls on parse.com into your java process and you will get the same result.

6. You must be able to log WIRE/ HEADERS with http in order to develope in this environment.

sample code from android _ modified quickly to be near compatible on pure java:

//runnable inside the httpclient's implementation of 'exec'
    public void run() {
        int httprc = 999;
        CloseableHttpClient httpClient = HttpClients.custom()
                .setConnectionManager(YourConnectionMgr.getInstance())
                .addInterceptorLast(new HttpRequestInterceptor() {
                    public void process(
                            final HttpRequest request, 
                            final HttpContext context) throws HttpException, IOException { 

                            if(request.getRequestLine().getMethod() == "GET"){                                                                                                  
                                    request.addHeader("X-Parse-Application-Id", ParseApplication.key_appId);
                                    request.addHeader("X-Parse-REST-API-Key", ParseApplication.key_rest);
                                    request.addHeader("X-Parse-Session-Token",prefs.getString("default_parse_user_token", ""));
                                }

                    }
                })
                .build();   

        try {                       
            HttpResponse response = null;
            switch (method) {
            case GET:
                HttpGet httpGet = new HttpGet(url);
                httpGet.setProtocolVersion(new ProtocolVersion("HTTP", 1,1));
                httpGet.setConfig(this.config);
                response = httpClient.execute(httpGet, context);
                break; }


        } catch (Exception e) {
            handler.sendMessage(Message.obtain(handler,
                    HttpConnection.DID_ERROR, e));
        }