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setreuid/httpjson

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httpjson

  • (en) Java library for parse http json more easy.
  • (ko) Url과 파라미터를 넘기고 콜백 함수로 Json 결과를 받는 라이브러리 입니다.

Setup

Gradle

Edit root/app/build.gradle like below.

allprojects {
 repositories {
 ...
 maven { url 'https://jitpack.io' }
 }
}
dependencies {
 compile 'com.github.setreuid:httpjson:1.0.12'
}
<repositories>
 <repository>
 <id>jitpack.io</id>
 <url>https://jitpack.io</url>
 </repository>
</repositories>
<dependency>
 <groupId>com.github.setreuid</groupId>
 <artifactId>httpjson</artifactId>
 <version>1.0.12</version>
</dependency>

Usage

Imports

import java.util.HashMap;
import cc.udp.httpjson.HttpJson;
import cc.udp.httpjson.HttpJsonObject;
import cc.udp.httpjson.HttpJsonTask; 
import cc.udp.httpjson.HttpBytesTask;

JSON Parsing without params

파라미터 없이 JSON 파싱

String url = "https://jsonplaceholder.typicode.com/posts/1";
new HttpJson(url, null, new HttpJsonTask() {
 @Override
 public void done(HttpJsonObject json)
 {
 if (json == null)
 {
 return;
 }
 
 // {
 // "userId": 1,
 // "id": 1,
 // "title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
 // "body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto"
 // }
 
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String id = json.getInt("id");
 String title = json.getString("title");
 
 System.out.println("id: " + id);
 System.out.println("title: " + title);
 }
}).get();
lambda
new HttpJson("https://jsonplaceholder.typicode.com/posts/1")
 .then((HttpJsonObject json) -> {
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String id = json.getInt("id");
 String title = json.getString("title");
 
 System.out.println("id: " + id);
 System.out.println("title: " + title);
 })
 .except((e) -> {
 System.out.println(e.getMessage());
 })
 .get();

Access JSON value with method chaining

메서드 체인을 이용한 JSON 값 가져오기

String url = "https://maps.googleapis.com/maps/api/geocode/json?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA";
new HttpJson(url, null, new HttpJsonTask() {
 @Override
 public void done(HttpJsonObject json)
 {
 if (json == null)
 {
 return;
 }
 
 // {
 // "results" : [
 // {
 // "address_components" : [
 // {
 // "long_name" : "Google Building 41",
 // "short_name" : "Google Bldg 41",
 // "types" : [ "premise" ]
 // },
 // ...
 // ],
 // "status" : "OK"
 // }
 
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String status = json.getString("status");
 String addressLongName = json.getArray("results").get(0)
 .getArray("address_components").get(0)
 .getString("long_name");
 
 System.out.println("status: " + status);
 System.out.println("addressLongName: " + addressLongName);
 }
}).get();

POST JSON Parsing with params

파라미터 포함하여 POST JSON 파싱

String url = "http://p.udp.cc/jsonPostTest.php";
HashMap<String, String> params = new HashMap<String, String>();
params.put("test-key", "A123456789B");
new HttpJson(url, params, new HttpJsonTask() {
 @Override
 public void done(HttpJsonObject json)
 {
 if (json == null)
 {
 return;
 }
 
 // {
 // "test-key": "A123456789B"
 // }
 
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String value = json.getString("test-key");
 System.out.println("test-key: " + value);
 }
}).post();
lambda
new HttpJson("http://p.udp.cc/jsonPostTest.php")
 .addField("test-key", "A123456789B")
 .then((HttpJsonObject json) -> {
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String value = json.getString("test-key");
 System.out.println("test-key: " + value);
 })
 .except((e) -> {
 System.out.println(e.getMessage());
 })
 .post();

GET JSON Parsing with params

파라미터 포함하여 GET JSON 파싱

String url = "http://p.udp.cc/jsonGetTest.php";
// http://p.udp.cc/jsonGetTest.php?test-key=A123456789B
HashMap<String, String> params = new HashMap<String, String>();
params.put("test-key", "A123456789B");
new HttpJson(url, params, new HttpJsonTask() {
 @Override
 public void done(HttpJsonObject json)
 {
 if (json == null)
 {
 return;
 }
 
 // {
 // "test-key": "A123456789B"
 // }
 
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String value = json.getString("test-key");
 System.out.println("test-key: " + value);
 }
}).get();
lambda
new HttpJson("http://p.udp.cc/jsonGetTest.php")
 .addField("test-key", "A123456789B")
 .then((HttpJsonObject json) -> {
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String value = json.getString("test-key");
 System.out.println("test-key: " + value);
 })
 .except((e) -> {
 System.out.println(e.getMessage());
 })
 .get();

Just Call without params

파라미터 포함하지 않고 단순 호출

String url = "http://p.udp.cc/jsonPostTest.php";
new HttpJson(url, null, null).post();

Just Call with params

파라미터 포함하여 단순 호출

String url = "http://p.udp.cc/jsonPostTest.php";
HashMap<String, String> params = new HashMap<String, String>();
params.put("test-key", "A123456789B");
new HttpJson(url, params, null).post();

With headers

헤더 추가하기

  • (en) If Content-Type is specified as application/json, parameters are sent in JSON format.
  • (en) Unless otherwise specified, application/x-www-form-urlencoded is the default value ofContent-Type.
  • (ko) Content-Type을 application/json으로 지정하면 JSON 형태로 파라미터를 전송합니다.
  • (ko) 특별히 지정하지 않을때에는 application/x-www-form-urlencoded이 Content-Type의 기본값입니다.
new HttpJson("http://p.udp.cc/jsonPostTest.php")
 .addHeader("Content-Type", "application/json")
 .addField("test-key", "A123456789B")
 .then((HttpJsonObject json) -> {
 // Check json string
 System.out.println("JSON: " + json.toString());
 
 String value = json.getString("test-key");
 System.out.println("test-key: " + value);
 })
 .except((e) -> {
 System.out.println(e.getMessage());
 })
 .post();

Binary

바이너리 값 가져오기

public static String byteArrayToHexString(byte[] bytes){ 
 StringBuilder sb = new StringBuilder(); 
	for(byte b : bytes){ 
 sb.append(String.format("%02X", b&0xff)); 
 } 
 return sb.toString(); 
}
new HttpJson("https://s.yimg.com/rz/p/yahoo_frontpage_en-US_s_f_p_205x58_frontpage_2x.png")
 .then((byte[] binary) -> {
 System.out.println("binary: " + byteArrayToHexString(binary));
 // binary: 89504E470D0A1A0A0000000D494844520000019A0000007408030...
 })
 .except((e) -> {
 System.out.println(e.getMessage());
 })
 .get();

Class

HttpJsonObject

Return type Method name Parameters
HttpJsonObject getObject String key
ArrayList<HttpJsonObject> getArray String key
String getString String key
int getInt String key
float getFloat String key
double getDouble String key
byte[] getBytes String key
Object get String key

Todo

  • GET
  • POST
  • Return 결과를 byte[]로 받기
  • PUT, PATCH, DELETE
  • byte[]형 필드 추가

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