spring mvc : servlet - http message body(String)

spring-mvc/servlet/src/main/java/com/example/servlet/basic/request/RequestBodyStringServlet.java

@@ -0,0 +1,27 @@
+package com.example.servlet.basic.request;
+
+import org.springframework.util.StreamUtils;
+
+import javax.servlet.ServletException;
+import javax.servlet.ServletInputStream;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
+@WebServlet("/request-body-string")
+public class RequestBodyStringServlet extends HttpServlet {
+    @Override
+    protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        // 요청 메시지의 body 의 값을 바이트 코드로 받는다.
+        ServletInputStream inputStream = request.getInputStream();
+
+        // 바이트 코드를 String 으로 변환
+        String messageBody = StreamUtils.copyToString(inputStream, StandardCharsets.UTF_8);
+        System.out.println("messageBody = " + messageBody);
+
+        response.getWriter().write("ok");
+    }
+}