上传图片到阿里云OSS和获取上传图片的外网url的步骤

2021-05-14 16:29

阅读:630

标签:https   auto   sys   ext   import   resign   esc   soft   class   

"/bcis/api/headImgUpload.json" method="post" enctype="multipart/form-data">
    "file" name="file">
    "submit" value="提交">

2.controller:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
@RequestMapping(value = "/headImgUpload.json", method = RequestMethod.POST)
 @ResponseBody
 public Map headImgUpload(HttpServletRequest request,MultipartFile file) {
   Map value = new HashMap();
   value.put("success"true);
   value.put("errorCode"0);
   value.put("errorMsg""");
   try {
     String head = userService.updateHead(file, 4);//此处是调用上传服务接口,4是需要更新的userId 测试数据。
     value.put("data", head);
   catch (IOException e) {
     e.printStackTrace();
     value.put("success"false);
     value.put("errorCode"200);
     value.put("errorMsg""图片上传失败");
   }
   return value;
 }

3.service   此处要把

@Autowired
private OSSClientUtil ossClient;注进来
1
2
3
4
5
6
7
8
9
10
@Override
  public String updateHead(MultipartFile file, long userId) throws IOException{
    if (file == null || file.getSize() 0) {
      throw new ImgException("头像不能为空");
    }
    String name = ossClient.uploadImg2Oss(file);
    String imgUrl = ossClient.getImgUrl(name);
    userDao.updateHead(userId, imgUrl);//只是本地上传使用的
    return imgUrl;
  }

4.上传的阿里云的帮助类OSSClientUtil 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
import java.io.*;
import java.net.URL;
import java.util.Date;
import java.util.Random;
 
import com.fndsoft.bcis.exception.ImgException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
 
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.ObjectMetadata;
import com.aliyun.oss.model.PutObjectResult;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;
 
/**
 * 阿里云 OSS文件类
 *
 * @author YuanDuDu
 */
public class OSSClientUtil {
 
  Log log = LogFactory.getLog(OSSClientUtil.class);
  // endpoint以杭州为例,其它region请按实际情况填写
  private String endpoint = "您的endpoint";
  // accessKey
  private String accessKeyId = "您的accessKeyId";
  private String accessKeySecret = "您的accessKeySecret";
  //空间
  private String bucketName = "bcis";
  //文件存储目录
  private String filedir = "data/";
 
  private OSSClient ossClient;
 
  public OSSClientUtil() {
    ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
  }
 
  /**
   * 初始化
   */
  public void init() {
    ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
  }
 
  /**
   * 销毁
   */
  public void destory() {
    ossClient.shutdown();
  }
 
  /**
   * 上传图片
   *
   * @param url
   */
  public void uploadImg2Oss(String url) {
    File fileOnServer = new File(url);
    FileInputStream fin;
    try {
      fin = new FileInputStream(fileOnServer);
      String[] split = url.split("/");
      this.uploadFile2OSS(fin, split[split.length - 1]);
    catch (FileNotFoundException e) {
      throw new ImgException("图片上传失败");
    }
  }
 
 
  public String uploadImg2Oss(MultipartFile file) {
    if (file.getSize() > 1024 1024) {
      throw new ImgException("上传图片大小不能超过1M!");
    }
    String originalFilename = file.getOriginalFilename();
    String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase();
    Random random = new Random();
    String name = random.nextInt(10000) + System.currentTimeMillis() + substring;
    try {
      InputStream inputStream = file.getInputStream();
      this.uploadFile2OSS(inputStream, name);
      return name;
    catch (Exception e) {
      throw new ImgException("图片上传失败");
    }
  }
 
  /**
   * 获得图片路径
   *
   * @param fileUrl
   * @return
   */
  public String getImgUrl(String fileUrl) {
    if (!StringUtils.isEmpty(fileUrl)) {
      String[] split = fileUrl.split("/");
      return this.getUrl(this.filedir + split[split.length - 1]);
    }
    return null;
  }
 
  /**
   * 上传到OSS服务器  如果同名文件会覆盖服务器上的
   *
   * @param instream 文件流
   * @param fileName 文件名称 包括后缀名
   * @return 出错返回"" ,唯一MD5数字签名
   */
  public String uploadFile2OSS(InputStream instream, String fileName) {
    String ret = "";
    try {
      //创建上传Object的Metadata 
      ObjectMetadata objectMetadata = new ObjectMetadata();
      objectMetadata.setContentLength(instream.available());
      objectMetadata.setCacheControl("no-cache");
      objectMetadata.setHeader("Pragma""no-cache");
      objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
      objectMetadata.setContentDisposition("inline;filename=" + fileName);
      //上传文件
      PutObjectResult putResult = ossClient.putObject(bucketName, filedir + fileName, instream, objectMetadata);
      ret = putResult.getETag();
    catch (IOException e) {
      log.error(e.getMessage(), e);
    finally {
      try {
        if (instream != null) {
          instream.close();
        }
      catch (IOException e) {
        e.printStackTrace();
      }
    }
    return ret;
  }
 
  /**
   * Description: 判断OSS服务文件上传时文件的contentType
   *
   * @param FilenameExtension 文件后缀
   * @return String
   */
  public static String getcontentType(String FilenameExtension) {
    if (FilenameExtension.equalsIgnoreCase(".bmp")) {
      return "image/bmp";
    }
    if (FilenameExtension.equalsIgnoreCase(".gif")) {
      return "image/gif";
    }
    if (FilenameExtension.equalsIgnoreCase(".jpeg") ||
        FilenameExtension.equalsIgnoreCase(".jpg") ||
        FilenameExtension.equalsIgnoreCase(".png")) {
      return "image/jpeg";
    }
    if (FilenameExtension.equalsIgnoreCase(".html")) {
      return "text/html";
    }
    if (FilenameExtension.equalsIgnoreCase(".txt")) {
      return "text/plain";
    }
    if (FilenameExtension.equalsIgnoreCase(".vsd")) {
      return "application/vnd.visio";
    }
    if (FilenameExtension.equalsIgnoreCase(".pptx") ||
        FilenameExtension.equalsIgnoreCase(".ppt")) {
      return "application/vnd.ms-powerpoint";
    }
    if (FilenameExtension.equalsIgnoreCase(".docx") ||
        FilenameExtension.equalsIgnoreCase(".doc")) {
      return "application/msword";
    }
    if (FilenameExtension.equalsIgnoreCase(".xml")) {
      return "text/xml";
    }
    return "image/jpeg";
  }
 
  /**
   * 获得url链接
   *
   * @param key
   * @return
   */
  public String getUrl(String key) {
    // 设置URL过期时间为10年  3600l* 1000*24*365*10
    Date expiration = new Date(new Date().getTime() + 3600l * 1000 24 365 10);
    // 生成URL
    URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
    if (url != null) {
      return url.toString();
    }
    return null;
  }
}

  

6.需要引入的jar包:gradle配置为:

compile ‘com.aliyun.oss:aliyun-sdk-oss:2.2.3‘

上传图片到阿里云OSS和获取上传图片的外网url的步骤

标签:https   auto   sys   ext   import   resign   esc   soft   class   

原文地址:https://www.cnblogs.com/xiangzideheiniu/p/11984063.html


评论


亲,登录后才可以留言!