upload : file upload(servlet)

2021-07-28 15:09:58 +09:00
parent 5058a22eb4
commit a4fcb80abe
4 changed files with 129 additions and 0 deletions
--- a/upload/src/main/java/hello/upload/controller/ServletUploadControllerV1.java
+++ b/upload/src/main/java/hello/upload/controller/ServletUploadControllerV1.java
@@ -0,0 +1,37 @@
+package hello.upload.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.Part;
+import java.io.IOException;
+import java.util.Collection;
+
+@Slf4j
+@ControllerAdvice
+@RequestMapping("/servlet/v1")
+public class ServletUploadControllerV1 {
+
+    @GetMapping("/upload")
+    public String newFile() {
+        return "upload-form";
+    }
+
+    @PostMapping("/upload")
+    public String saveFileV1(HttpServletRequest request) throws ServletException, IOException {
+        log.info("request={}", request);
+
+        String itemName = request.getParameter("itemName");
+        log.info("itemName={}", itemName);
+
+        Collection<Part> parts = request.getParts();
+        log.info("parts={}", parts);
+
+        return "upload-form";
+    }
+}
--- a/upload/src/main/java/hello/upload/controller/ServletUploadControllerV2.java
+++ b/upload/src/main/java/hello/upload/controller/ServletUploadControllerV2.java
@@ -0,0 +1,69 @@
+package hello.upload.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.util.StreamUtils;
+import org.springframework.util.StringUtils;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.Part;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.Collection;
+
+@Slf4j
+@ControllerAdvice
+@RequestMapping("/servlet/v2")
+public class ServletUploadControllerV2 {
+
+    @Value("${file.dir}")
+    private String fileDir;
+
+    @GetMapping("/upload")
+    public String newFile() {
+        return "upload-form";
+    }
+
+    @PostMapping("/upload")
+    public String saveFileV1(HttpServletRequest request) throws ServletException, IOException {
+        log.info("request={}", request);
+
+        String itemName = request.getParameter("itemName");
+        log.info("itemName={}", itemName);
+
+        Collection<Part> parts = request.getParts();
+        log.info("parts={}", parts);
+
+        for (Part part : parts) {
+            log.info("===== Parts =====");
+            log.info("name={}", part.getName());
+            Collection<String> headerNames = part.getHeaderNames();
+            for (String headerName : headerNames) {
+                log.info("header {}: {}", headerName, part.getHeader(headerName));
+            }
+
+            log.info("submittedFileName={}", part.getSubmittedFileName());
+            log.info("size={}", part.getSize());
+
+            // 데이터 읽기
+            InputStream inputStream = part.getInputStream();
+            String body = StreamUtils.copyToString(inputStream, StandardCharsets.UTF_8);
+            log.info("body={}", body);
+
+            // 저장하기
+            if (StringUtils.hasText(part.getSubmittedFileName())) {
+                String fullPath = fileDir + part.getSubmittedFileName();
+                log.info("파일 저장 fullPath={}", fullPath);
+                part.write(fullPath);
+            }
+        }
+
+        return "upload-form";
+    }
+}
--- a/upload/src/main/resources/application.properties
+++ b/upload/src/main/resources/application.properties
@@ -1 +1,3 @@
+#logging.level.org.apache.coyote.http11=debug

+file.dir=C:/Users/Woojin/Desktop/study/file/
--- a/upload/src/main/resources/templates/upload-form.html
+++ b/upload/src/main/resources/templates/upload-form.html
@@ -0,0 +1,21 @@
+<!DOCTYPE HTML>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+  <meta charset="utf-8">
+</head>
+<body>
+<div class="container">
+  <div class="py-5 text-center">
+    <h2>상품 등록 폼</h2>
+  </div>
+  <h4 class="mb-3">상품 입력</h4>
+  <form th:action method="post" enctype="multipart/form-data">
+    <ul>
+      <li>상품명 <input type="text" name="itemName"></li>
+      <li>파일<input type="file" name="file" ></li>
+    </ul>
+    <input type="submit"/>
+  </form>
+</div> <!-- /container -->
+</body>
+</html>