七牛云demo，文件上传demo

最新推荐文章于 2024-08-28 08:38:44 发布

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本文提供了一个使用七牛云存储服务进行文件上传的Java示例代码，展示了如何通过七牛云SDK获取上传凭证、配置上传管理器并完成文件上传的过程。同时，还给出了一个简单的文件下载链接生成示例。

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package com.tc.art.qiniuyun;

import com.google.gson.Gson;
import com.qiniu.common.QiniuException;
import com.qiniu.common.Zone;
import com.qiniu.http.Response;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;

/**
* @author 七牛云上传
*/
public class UploadDemo {

public static void main(String[] args) {
String accessKey = "xxxx";
String secretKey = "xxxx";
String bucket = "bucket2";
Auth auth = Auth.create(accessKey, secretKey);
String upToken = auth.uploadToken(bucket);
System.out.println(upToken);

Configuration cfg = new Configuration(Zone.zone0());

UploadManager uploadManager = new UploadManager(cfg);
String key = null;
String localFilePath = "C:\\Users\\Administrator\\Downloads\\DiskCalculator.rar";

try {
Response response = uploadManager.put(localFilePath, key, upToken);
//解析上传成功的结果
DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
System.out.println(putRet.key);
System.out.println(putRet.hash);
} catch (QiniuException ex) {
Response r = ex.response;
System.err.println(r.toString());
try {
System.err.println(r.bodyString());
} catch (QiniuException ex2) {
//ignore
ex2.printStackTrace();
Response response = ex2.response;
System.out.println(response.toString());
}
}
}
}

package com.tc.art.qiniuyun;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

public class DownDemo {

public static void main(String[] args) throws UnsupportedEncodingException {
String fileName = "FjtsHlJCf4LJwU5oljNQPiYmkLbB";
String domainOfBucket = "http://xxxxx";
String encodedFileName = URLEncoder.encode(fileName, "utf-8");
// String publicUrl = String.format("%s/%s", domainOfBucket, encodedFileName);
// String accessKey = "SCerPf6t304mqDi-U8UQASDqYz5jgUxf4SU8HWCt";
// String secretKey = "VFm0c_4QMQQOpup-jtkcU9dN57IqOOxr0jASnlfV";
//

String finalUrl = String.format("%s/%s", domainOfBucket, encodedFileName);
System.out.println(finalUrl);

//预览 domainOfBucket+finalUrl

}
}

注意webserver(tomcat、nginx)的默认文件上传限制。