cURL和HttpURLConnection -发布JSON数据
cURL和HttpURLConnection -发布JSON数据
提问于 2012-03-09 02:52:00
如何使用HttpURLConnection发布JSON数据？我正在尝试这样做：
HttpURLConnection httpcon = (HttpURLConnection) ((new URL("a url").openConnection()));
httpcon.setDoOutput(true);
httpcon.setRequestProperty("Content-Type", "application/json");
httpcon.setRequestProperty("Accept", "application/json");
httpcon.setRequestMethod("POST");
httpcon.connect();
StringReader reader = new StringReader("{'value': 7.5}");
OutputStream os = httpcon.getOutputStream();
char[] buffer = new char[4096];
int bytes_read;
while((bytes_read = reader.read(buffer)) != -1) {
os.write(buffer, 0, bytes_read);// I am getting compilation error here
}
os.close();我在第14行遇到编译错误。
cURL请求为：
curl -H "Accept: application/json" \
-H "Content-Type: application/json" \
-d "{'value': 7.5}" \
"a URL"这是处理cURL请求的方式吗？任何信息对我都很有帮助。
谢谢。
回答 1
Stack Overflow用户
回答已采纳
发布于 2012-03-09 03:08:38
OutputStream希望处理字节，而您向它传递的是字符。试试这个：
HttpURLConnection httpcon = (HttpURLConnection) ((new URL("a url").openConnection()));
httpcon.setDoOutput(true);
httpcon.setRequestProperty("Content-Type", "application/json");
httpcon.setRequestProperty("Accept", "application/json");
httpcon.setRequestMethod("POST");
httpcon.connect();
byte[] outputBytes = "{'value': 7.5}".getBytes("UTF-8");
OutputStream os = httpcon.getOutputStream();
os.write(outputBytes);
os.close();页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/9623158
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