Curl to Java Converter

I-convert ang mga curl command sa Java code - Gumawa ng ready-to-use na Java HttpClient code para sa mga API request

Abiso sa Privacy: Ang professional tool na ito ay nagbibigay ng secure na conversion sa Java code na may enterprise-grade na proteksyon sa privacy. Hindi namin sine-save ang anumang data na iyong isinusumite, na tinitiyak ang kumpletong confidentiality para sa iyong API development work.

Java HttpClient Code Generator

// Java HttpClient code will appear here
// Example:
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.time.Duration;

public class HttpClientExample {
    public static void main(String[] args) throws Exception {
        HttpClient client = HttpClient.newBuilder()
                .version(HttpClient.Version.HTTP_2)
                .connectTimeout(Duration.ofSeconds(10))
                .build();
                
        String jsonBody = "{\"name\": \"test\"}";
        
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.example.com/data"))
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonBody))
                .build();
                
        HttpResponse response = client.send(request, 
                HttpResponse.BodyHandlers.ofString());
                
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

Mga Karaniwang Curl Command para sa Java API Testing

Narito ang ilang karaniwang curl command na maaari mong i-convert sa Java code:

Mga Java HttpClient Example

Ang HttpClient library ng Java (ipinakilala sa Java 11) ay isang makapangyarihan at modernong paraan para gumawa ng mga HTTP request. Narito ang ilang karaniwang Java HttpClient pattern:

File Upload gamit ang Java HttpClient

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class FileUploadExample {
    public static void main(String[] args) throws IOException, InterruptedException {
        HttpClient client = HttpClient.newBuilder()
                .version(HttpClient.Version.HTTP_2)
                .build();
                
        Path path = Paths.get("document.pdf");
        String boundary = "----WebKitFormBoundary" + System.currentTimeMillis();
        String contentType = "multipart/form-data; boundary=" + boundary;
        
        // Create multipart form data
        String data = "--" + boundary + "\r\n" +
                "Content-Disposition: form-data; name=\"file\"; filename=\"" + path.getFileName() + "\"\r\n" +
                "Content-Type: application/pdf\r\n\r\n";
                
        byte[] fileData = Files.readAllBytes(path);
        byte[] requestBody = new byte[data.getBytes().length + fileData.length + ("\r\n--" + boundary + "--\r\n").getBytes().length];
        
        System.arraycopy(data.getBytes(), 0, requestBody, 0, data.getBytes().length);
        System.arraycopy(fileData, 0, requestBody, data.getBytes().length, fileData.length);
        System.arraycopy(("\r\n--" + boundary + "--\r\n").getBytes(), 0, requestBody, 
                data.getBytes().length + fileData.length, ("\r\n--" + boundary + "--\r\n").getBytes().length);
        
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.example.com/upload"))
                .header("Content-Type", contentType)
                .header("Authorization", "Bearer YOUR_TOKEN_HERE")
                .POST(HttpRequest.BodyPublishers.ofByteArray(requestBody))
                .build();
                
        HttpResponse response = client.send(request, 
                HttpResponse.BodyHandlers.ofString());
                
        System.out.println(response.body());
    }
}

Java HttpClient na may Timeout at Error Handling

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.time.Duration;

public class ErrorHandlingExample {
    public static void main(String[] args) {
        HttpClient client = HttpClient.newBuilder()
                .version(HttpClient.Version.HTTP_2)
                .connectTimeout(Duration.ofSeconds(5))
                .build();
                
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.example.com/data"))
                .timeout(Duration.ofSeconds(5))
                .GET()
                .build();
                
        try {
            HttpResponse response = client.send(request, 
                    HttpResponse.BodyHandlers.ofString());
                    
            int statusCode = response.statusCode();
            if (statusCode >= 200 && statusCode < 300) {
                System.out.println("Success: " + response.body());
            } else {
                System.out.println("Error: " + statusCode + " - " + response.body());
            }
        } catch (IOException e) {
            System.out.println("Connection error: " + e.getMessage());
        } catch (InterruptedException e) {
            System.out.println("Request interrupted: " + e.getMessage());
            Thread.currentThread().interrupt();
        } catch (Exception e) {
            System.out.println("Error making request: " + e.getMessage());
        }
    }
}

Paano Gamitin ang Java HttpClient Converterr

1. Pangunahing Paggamit

Kopyahin ang iyong curl command → I-paste sa input box → Kunin ang na-convert na Java HttpClient code

2. Mga Feature ng Java HttpClient

  • HTTP methods (GET, POST, PUT, DELETE, etc.)
  • Request headers in Java format
  • JSON and form data handling
  • Basic and token authentication
  • SSL verification options
  • Session handling with Java HttpClient

3. Advanced na Paggamit ng Java HttpClient

Ang aming converter ay sumusuporta sa mga kumplikadong curl command at isinasalin ang mga ito sa malinis, mahusay na Java code gamit ang HttpClient library

4. Pag-convert ng mga Curl Option sa Java

Ang aming tool ay nagha-handle ng mga karaniwang curl option na ito at kino-convert ang mga ito sa angkop na Java HttpClient code:

  • -X, --request: Sets the HTTP method (GET, POST, PUT, etc.)
  • -H, --header: Adds HTTP headers to the request
  • -d, --data: Sends data in the request body
  • --data-binary: Sends binary data in the request body
  • -u, --user: Adds basic authentication
  • -k, --insecure: Disables SSL certificate verification
  • --connect-timeout: Sets connection timeout

Mga Madalas na Tanong tungkol sa Java HttpClient

T: Anong Java version ang kailangan para sa na-generate na code?

S: Ang na-generate na Java HttpClient code ay nangangailangan ng Java 11 o mas bago. Para sa mas lumang Java version, isaalang-alang ang paggamit ng alternatibong HTTP client tulad ng Apache HttpClient o OkHttp.

T: Nagha-handle ba ang Java code ng error checking?

S: Ang basic na na-generate na code ay may kasamang try/catch block para sa IOException at InterruptedException. Para sa production code, maaaring gusto mong magdagdag ng mas specific na error handling para sa iba't ibang HTTP status code.

T: Paano ko ma-process ang response sa Java?

S: Ang HttpClient library ay nagbibigay ng ilang BodyHandler para sa pag-process ng mga response. Gamitin ang HttpResponse.BodyHandlers.ofString() para sa text response, ofInputStream() para sa binary data, o ofByteArray() para sa raw bytes.

T: Kailangan ko bang mag-install ng anumang library para gamitin ang na-generate na code?

S: Walang external library ang kinakailangan. Ang HttpClient ay bahagi ng Java standard library mula Java 11. Para sa JSON processing, maaaring gusto mong magdagdag ng library tulad ng Jackson o Gson.

T: Paano ko ico-convert ang isang curl command na may file upload sa Java?

S: Para sa file upload sa Java, kailangan mong gamitin ang multipart form data sa HttpClient. Ang aming converter ay nagha-handle ng mga curl command na may -F o --form option at gumagawa ng angkop na Java code.

T: Paano ko hahawakan ang mga cookie sa Java HttpClient?

S: Ang HttpClient ng Java ay nagbibigay ng cookie handling sa pamamagitan ng HttpClient.Builder.cookieHandler() method. Kapag nag-convert ka ng mga curl command na may kasamang cookie handling (gamit ang -b o --cookie), ang aming tool ay gumagawa ng Java code na maayos na namamahala ng mga cookie.

T: Ano ang pagkakaiba sa pagitan ng paggamit ng curl at Java HttpClient para sa API testing?

S: Habang ang curl ay mahusay para sa mabilis na command-line API testing, ang Java HttpClient ay nagbibigay ng programmatic approach na nag-i-integrate sa iyong mga Java application. Ang pag-convert ng curl sa Java ay tumutulong na tulay ang pagitan ng testing at implementation sa Java development.

Curl Command Reference para sa Java API Testing

Ang pag-unawa sa mga curl command ay mahalaga para sa epektibong API testing gamit ang Java. Narito ang isang mabilis na reference ng mga karaniwang curl option na sinusuportahan ng aming converter:

Basic na Curl Syntax

curl [options] [URL]

Mga Karaniwang Curl Option

Pag-convert ng Mga Kumplikadong Curl Command

Ang aming Java converter ay nagha-handle ng mga kumplikadong curl command kabilang ang maraming header, authentication, data payload, at iba't ibang option. I-paste lang ang iyong curl command at makakuha ng malinis, modernong Java code gamit ang HttpClient library.

Mga Best Practice sa Java HttpClient

Kapag gumagamit ng Java HttpClient library, sundin ang mga best practice na ito para sa mahusay at secure na API interaction:

1. Muling Gamitin ang mga HttpClient Instance

import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;

public class HttpClientReuseExample {
    // Create a single HttpClient instance for the application
    private static final HttpClient httpClient = HttpClient.newBuilder()
            .version(HttpClient.Version.HTTP_2)
            .build();
            
    public static void main(String[] args) throws Exception {
        // First request
        HttpRequest request1 = HttpRequest.newBuilder()
                .uri(URI.create("https://api.example.com/users"))
                .GET()
                .build();
        HttpResponse response1 = httpClient.send(request1, 
                HttpResponse.BodyHandlers.ofString());
                
        // Second request (uses same client)
        HttpRequest request2 = HttpRequest.newBuilder()
                .uri(URI.create("https://api.example.com/products"))
                .GET()
                .build();
        HttpResponse response2 = httpClient.send(request2, 
                HttpResponse.BodyHandlers.ofString());
    }
}

2. Mag-implement ng Tamang Error Handling

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpTimeoutException;

public class ErrorHandlingBestPractice {
    public static void main(String[] args) {
        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.example.com/data"))
                .GET()
                .build();
                
        try {
            HttpResponse response = client.send(request, 
                    HttpResponse.BodyHandlers.ofString());
                    
            switch (response.statusCode()) {
                case 200:
                case 201:
                    System.out.println("Success: " + response.body());
                    break;
                case 400:
                    System.out.println("Bad request: " + response.body());
                    break;
                case 401:
                case 403:
                    System.out.println("Authentication error: " + response.statusCode());
                    break;
                case 404:
                    System.out.println("Resource not found");
                    break;
                case 500:
                case 503:
                    System.out.println("Server error: " + response.statusCode());
                    break;
                default:
                    System.out.println("Unexpected status: " + response.statusCode());
            }
        } catch (HttpTimeoutException e) {
            System.out.println("Request timed out: " + e.getMessage());
        } catch (IOException e) {
            System.out.println("Network error: " + e.getMessage());
        } catch (InterruptedException e) {
            System.out.println("Request interrupted");
            Thread.currentThread().interrupt();
        }
    }
}

3. Gumamit ng Asynchronous Request para sa Mas Mahusay na Performance

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.concurrent.CompletableFuture;

public class AsyncRequestExample {
    public static void main(String[] args) {
        HttpClient client = HttpClient.newHttpClient();
        
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.example.com/data"))
                .GET()
                .build();
                
        CompletableFuture> futureResponse = 
                client.sendAsync(request, HttpResponse.BodyHandlers.ofString());
                
        futureResponse
            .thenApply(HttpResponse::body)
            .thenAccept(System.out::println)
            .exceptionally(e -> {
                System.err.println("Error: " + e.getMessage());
                return null;
            });
            
        // Do other work while the request is processing
        System.out.println("Request sent asynchronously...");
        
        // Wait for the request to complete if needed
        futureResponse.join();
    }
}

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