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要使用JDK的Java RESTful Web服務庫,您可以使用Java內置的HttpURLConnection類來發送HTTP請求,并使用Jackson庫來處理JSON數據。以下是一個簡單的示例代碼:
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.3</version>
</dependency>
URL url = new URL("http://example.com/api/data");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
int responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
// 讀取響應數據
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line;
StringBuffer response = new StringBuffer();
while ((line = reader.readLine()) != null) {
response.append(line);
}
reader.close();
// 處理響應數據
ObjectMapper objectMapper = new ObjectMapper();
YourDataClass data = objectMapper.readValue(response.toString(), YourDataClass.class);
}
connection.disconnect();
URL url = new URL("http://example.com/api/data");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
connection.setDoOutput(true);
String postData = "{ \"key\": \"value\" }";
OutputStream os = connection.getOutputStream();
os.write(postData.getBytes());
os.flush();
int responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
// 處理響應數據
}
connection.disconnect();
通過使用HttpURLConnection類和Jackson庫,您可以輕松地創建和發送RESTful Web服務請求,并處理響應數據。請記得處理異常和關閉連接以確保代碼的健壯性。
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