[API Server]jersey 檔案上傳
1. POM
org.glassfish.jersey.containers
jersey-container-servlet
2.17
org.glassfish.jersey.containers
jersey-container-servlet-core
2.17
org.glassfish.jersey.media
jersey-media-multipart
2.17
2.上傳網頁
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<form action="API/file/upload" method="post" enctype="multipart/form-data" >
<p>
Select a file : <input type="file" name="file" />
</p>
<input type="submit" value="Upload It" />
</form>
</body>
</html>
2.上傳網頁
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<form action="API/file/upload" method="post" enctype="multipart/form-data" >
<p>
Select a file : <input type="file" name="file" />
</p>
<input type="submit" value="Upload It" />
</form>
</body>
</html>
3.API Server 設定
import javax.ws.rs.ApplicationPath;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.media.multipart.MultiPartFeature;
@ApplicationPath("API")
public class APIService extends ResourceConfig {
public APIService() {
packages("test.API");
//須註冊這個才可以上傳檔案
register(MultiPartFeature.class);
}
}
4.上傳API撰寫
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.glassfish.jersey.media.multipart.FormDataContentDisposition;
import org.glassfish.jersey.media.multipart.FormDataParam;
@Path("/file")
public class UploadFileService {
@POST
@Path("/upload")
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces(MediaType.TEXT_HTML + "; charset=UTF-8")
public Response uploadFile(
@FormDataParam("file") InputStream uploadedInputStream,
@FormDataParam("file") FormDataContentDisposition fileDetail) throws UnsupportedEncodingException {
//UTF-8編碼否則會變亂碼
String fileName = new String(fileDetail.getFileName().getBytes("ISO8859-1"), "UTF-8");
//for windows
String uploadedFileLocation = "d://" + fileName;
// save it
writeToFile(uploadedInputStream, uploadedFileLocation);
String output = "File uploaded to : " + uploadedFileLocation;
return Response.status(200).entity(output).build();
}
// 寫入資料夾內
private void writeToFile(
InputStream uploadedInputStream,
String uploadedFileLocation) {
OutputStream out;
try {
int read = 0;
byte[] bytes = new byte[1024];
out = new FileOutputStream(new File(uploadedFileLocation));
while ((read = uploadedInputStream.read(bytes)) != -1) {
out.write(bytes, 0, read);
}
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
參考:http://www.mkyong.com/webservices/jax-rs/file-upload-example-in-jersey/
有處理兩個問題
[FATAL] No injection source found for a parameter of type public javax.ws.rs.core.Response的問題
－＞register(MultiPartFeature.class);
中文檔案亂碼
－＞String fileName = new String(fileDetail.getFileName().getBytes("ISO8859-1"), "UTF-8");
若有疑問可在提出：）
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