68 lines
2.5 KiB
Java
68 lines
2.5 KiB
Java
package org.example;
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import java.io.OutputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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public class HttpRequestUtil {
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/**
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* 向指定URL发送POST请求，发送JSON数据
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* @param urlStr 目标接口地址
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* @param jsonData 发送的JSON字符串
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* @return 响应内容
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* @throws Exception 网络异常
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*/
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public static String postJson(String urlStr, String jsonData) throws Exception {
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URL url = new URL(urlStr);
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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conn.setRequestMethod("POST");
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conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
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conn.setDoOutput(true);
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conn.setDoInput(true);
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try (OutputStream os = conn.getOutputStream()) {
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os.write(jsonData.getBytes("UTF-8"));
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}
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int code = conn.getResponseCode();
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if (code == 200) {
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try (java.io.InputStream is = conn.getInputStream()) {
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java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();
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byte[] buffer = new byte[1024];
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int len;
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while ((len = is.read(buffer)) != -1) {
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baos.write(buffer, 0, len);
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}
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return new String(baos.toByteArray(), "UTF-8");
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}
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} else {
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throw new RuntimeException("HTTP请求失败，状态码: " + code);
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}
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}
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/**
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* 向指定URL发送GET请求
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* @param urlStr 目标接口地址
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* @return 响应内容
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* @throws Exception 网络异常
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*/
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public static String get(String urlStr) throws Exception {
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URL url = new URL(urlStr);
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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conn.setRequestMethod("GET");
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conn.setRequestProperty("Accept", "application/json");
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conn.setDoInput(true);
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int code = conn.getResponseCode();
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if (code == 200) {
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try (java.io.InputStream is = conn.getInputStream()) {
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java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();
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byte[] buffer = new byte[1024];
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int len;
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while ((len = is.read(buffer)) != -1) {
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baos.write(buffer, 0, len);
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}
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return new String(baos.toByteArray(), "UTF-8");
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}
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} else {
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throw new RuntimeException("HTTP GET请求失败，状态码: " + code);
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}
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}
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} |