版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/m18870420619/article/details/82592694
1,客户端请求工具类
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;
/**
* Http请求工具类
*
*/
public class HttpRequestUtil {
public String submitPostData(String strUrlPath, Map<String, String> params) {
String postData = getRequestData(params, "utf-8").toString();// 获得请求体
try {
// 发送POST请求
URL url = new URL(strUrlPath);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
conn.setRequestMethod("POST");
// conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setUseCaches(false);
conn.setDoOutput(true);
conn.setRequestProperty("Content-Length", "" + postData.length());
OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
out.write(postData);
out.flush();
out.close();
// 获取响应状态
if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
System.out.println("connect failed!" + conn.getResponseCode());
return "";
}
// 获取响应内容体
String line, result = "";
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
while ((line = in.readLine()) != null) {
result += line + "\n";
}
in.close();
return result;
} catch (IOException e) {
e.printStackTrace(System.out);
}
return "";
}
/*
* Function : 封装请求体信息 Param : params请求体内容,encode编码格式
*/
public static StringBuffer getRequestData(Map<String, String> params, String encode) {
StringBuffer stringBuffer = new StringBuffer(); // 存储封装好的请求体信息
try {
for (Map.Entry<String, String> entry : params.entrySet()) {
stringBuffer.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
}
stringBuffer.deleteCharAt(stringBuffer.length() - 1); // 删除最后的一个"&"
} catch (Exception e) {
e.printStackTrace();
}
return stringBuffer;
}
}
2,具体请求
HttpRequestUtil util = new HttpRequestUtil();
String url = "需要访问的接口";
//map参数
Map<String, String> paramMap = new HashMap<>();
paramMap.put("1", 1);
paramMap.put("2", 2);
paramMap.put("3", 3);
util.submitPostData(url, paramMap);
3,服务器端接口
@RequestMapping(value = "saveData", method = RequestMethod.POST)
@ResponseBody
public ErrorObject saveData(HttpServletRequest request, HttpServletResponse response) throws Exception {
//方法一
String roomStr = request.getParameter("1");
String areaStr = request.getParameter("2");
String dictionaryStr = request.getParameter("3");
object object= JSON.parseObject(1, object.class);
return tblRoomsService.save(object);
//方法二
// request.setCharacterEncoding("UTF-8");
// BufferedReader br = new BufferedReader(new
// InputStreamReader(request.getInputStream(), "utf-8"));
// String line = "";
// String paramStr = "";
// while (null != (line = br.readLine())) {
// paramStr += line;
// }
}