https://www.delftstack.com/ja/howto/java/call-rest-api-in-java/
https://techbooster.org/android/application/6812/
https://qiita.com/Hyman1993/items/bdf5500acff17f2b4840
notepad HTTPGet.java
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
public class HTTPGet {
public static void main(String args) throws Exception {
URL url = new URL("http://localhost:9090/webadmin/denodo-scheduler-admin/public/api/projects?uri=//localhost:8000");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Authorization","Basic YWRtaW46YWRtaW4=");
conn.setRequestProperty("Content-Type","application/json");
conn.connect();
int responseCode = conn.getResponseCode();
System.out.println("GET Response Code : " + responseCode);
if (responseCode == conn.HTTP_OK) {
InputStream in = conn.getInputStream();
InputStreamReader inReader = new InputStreamReader(in);
BufferedReader bufReader = new BufferedReader(inReader);
StringBuffer result = new StringBuffer();
String line = null;
while ( (line = bufReader.readLine() ) != null) {
result.append(line);
}
bufReader.close();
inReader.close();
in.close();
System.out.println( result.toString() );
} else {
System.out.println("Error found");
}
}
}
----------------------
notepad HTTPPost.java
import java.io.*;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class HTTPPost {
public static void main(String args) throws MalformedURLException, IOException {
URL url = new URL("http://localhost:9090/webadmin/denodo-scheduler-admin/public/api/projects?uri=//localhost:8000");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Authorization","Basic YWRtaW46YWRtaW4=");
conn.setRequestProperty("Content-Type","application/json");
conn.setDoOutput(true);
conn.setDoInput(true);
conn.connect();
String body = "{\"name\": \"project116\", \"description\": \"description of project116\"}";
OutputStream out = conn.getOutputStream();
OutputStreamWriter outWriter = new OutputStreamWriter(out);
BufferedWriter bufWriter = new BufferedWriter(outWriter);
bufWriter.write(body);
bufWriter.close();
outWriter.close();
out.close();
int responseCode = conn.getResponseCode();
System.out.println("POST Response Code : " + responseCode);
if (responseCode == conn.HTTP_CREATED) {
InputStream in= conn.getInputStream();
InputStreamReader inReader = new InputStreamReader(in);
BufferedReader bufReader = new BufferedReader(inReader);
StringBuffer result = new StringBuffer();
String line = null;
while ( (line = bufReader.readLine() ) != null) {
result.append(line);
}
bufReader.close();
inReader.close();
in.close();
System.out.println( result.toString() );
} else {
System.out.println("Error found");
}
}
}
