OSS如何实现查看对象列表？

查看对象列表即列出您在Bucket中上传的文件（Object），您可以通过OSS的接口调用一次性得到某一Bucket下最多1000个的Object列表。通过下面的四个参数，您可以完成多种拓展功能：

• 如果把 Prefix 设为某个文件夹名，就可以罗列以此 Prefix 开头的文件，即该文件夹下递归的所有的文件和子文件夹（目录）。文件名在Contents中显示。
• 如果再把 Delimiter 设置为 “/” 时，返回值就只罗列该文件夹下的文件和子文件夹（目录），该文件夹下的子文件名（目录）返回在 CommonPrefixes 部分，子文件夹下递归的文件和文件夹不被显示。

1. [backcolor=transparent]举个例子：
2. [backcolor=transparent]假如在[backcolor=transparent]OSS[backcolor=transparent]的[backcolor=transparent]Bucket[backcolor=transparent]：[backcolor=transparent]oss[backcolor=transparent]-[backcolor=transparent]sample[backcolor=transparent]下有如下[backcolor=transparent]Object[backcolor=transparent]：
4. [backcolor=transparent]文件[backcolor=transparent]D
5. [backcolor=transparent]目录[backcolor=transparent]A[backcolor=transparent]/文件[backcolor=transparent]C
6. [backcolor=transparent]目录[backcolor=transparent]A[backcolor=transparent]/文件[backcolor=transparent]D
7. [backcolor=transparent]目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]B[backcolor=transparent]/文件[backcolor=transparent]B
8. [backcolor=transparent]目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]B[backcolor=transparent]/目录[backcolor=transparent]C[backcolor=transparent]/文件[backcolor=transparent]A
9. [backcolor=transparent]目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]C[backcolor=transparent]/文件[backcolor=transparent]A
10. [backcolor=transparent]目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]D[backcolor=transparent]/文件[backcolor=transparent]B
11. [backcolor=transparent]目录[backcolor=transparent]B[backcolor=transparent]/文件[backcolor=transparent]A
13. [backcolor=transparent]1.[backcolor=transparent] [backcolor=transparent]列出第一层目录和文件
14. [backcolor=transparent]根据[backcolor=transparent]API[backcolor=transparent]中请求约定，需要设置[backcolor=transparent]Prefix[backcolor=transparent]为“”，[backcolor=transparent]Delimiter[backcolor=transparent]为[backcolor=transparent]"/"[backcolor=transparent]:
15. [backcolor=transparent]返回结果如下：
16. [backcolor=transparent]<?[backcolor=transparent]xml version[backcolor=transparent]=[backcolor=transparent]"1.0"[backcolor=transparent] encoding[backcolor=transparent]=[backcolor=transparent]"UTF-8"[backcolor=transparent]?>
17. [backcolor=transparent]<[backcolor=transparent]ListBucketResult[backcolor=transparent]>
18. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Name[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]-[backcolor=transparent]sample[backcolor=transparent]</[backcolor=transparent]Name[backcolor=transparent]>
19. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Prefix[backcolor=transparent]></[backcolor=transparent]Prefix[backcolor=transparent]>
20. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Marker[backcolor=transparent]></[backcolor=transparent]Marker[backcolor=transparent]>
21. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]MaxKeys[backcolor=transparent]>[backcolor=transparent]1000[backcolor=transparent]</[backcolor=transparent]MaxKeys[backcolor=transparent]>
22. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Delimiter[backcolor=transparent]>[backcolor=transparent]/</[backcolor=transparent]Delimiter[backcolor=transparent]>
23. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]IsTruncated[backcolor=transparent]>[backcolor=transparent]false[backcolor=transparent]</[backcolor=transparent]IsTruncated[backcolor=transparent]>
24. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Contents[backcolor=transparent]>
25. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Key[backcolor=transparent]>文件[backcolor=transparent]D[backcolor=transparent]</[backcolor=transparent]Key[backcolor=transparent]>
26. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]LastModified[backcolor=transparent]>[backcolor=transparent]2015[backcolor=transparent]-[backcolor=transparent]11[backcolor=transparent]-[backcolor=transparent]06T10[backcolor=transparent]:[backcolor=transparent]07[backcolor=transparent]:[backcolor=transparent]11.000Z[backcolor=transparent]</[backcolor=transparent]LastModified[backcolor=transparent]>
27. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]ETag[backcolor=transparent]>[backcolor=transparent]"8110930DA5E04B1ED5D84D6CC4DC9080"[backcolor=transparent]</[backcolor=transparent]ETag[backcolor=transparent]>
28. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Type[backcolor=transparent]>[backcolor=transparent]Normal[backcolor=transparent]</[backcolor=transparent]Type[backcolor=transparent]>
29. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Size[backcolor=transparent]>[backcolor=transparent]3340[backcolor=transparent]</[backcolor=transparent]Size[backcolor=transparent]>
30. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]StorageClass[backcolor=transparent]>[backcolor=transparent]Standard[backcolor=transparent]</[backcolor=transparent]StorageClass[backcolor=transparent]>
31. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Owner[backcolor=transparent]>
32. [backcolor=transparent]      [backcolor=transparent]<[backcolor=transparent]ID[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]</[backcolor=transparent]ID[backcolor=transparent]>
33. [backcolor=transparent]      [backcolor=transparent]<[backcolor=transparent]DisplayName[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]</[backcolor=transparent]DisplayName[backcolor=transparent]>
34. [backcolor=transparent]    [backcolor=transparent]</[backcolor=transparent]Owner[backcolor=transparent]>
35. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]Contents[backcolor=transparent]>
36. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
37. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Prefix[backcolor=transparent]>目录[backcolor=transparent]A[backcolor=transparent]/</[backcolor=transparent]Prefix[backcolor=transparent]>
38. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
39. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
40. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Prefix[backcolor=transparent]>目录[backcolor=transparent]B[backcolor=transparent]/</[backcolor=transparent]Prefix[backcolor=transparent]>
41. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
42. [backcolor=transparent]</[backcolor=transparent]ListBucketResult[backcolor=transparent]>
44. [backcolor=transparent]可以看到：
45. [backcolor=transparent]Contents[backcolor=transparent]返回的是第一层的文件：“文件[backcolor=transparent]D[backcolor=transparent]”。
46. [backcolor=transparent]CommonPrefixes[backcolor=transparent]返回的是第一层的目录：“目录[backcolor=transparent]A[backcolor=transparent]/”[backcolor=transparent] [backcolor=transparent]和[backcolor=transparent] [backcolor=transparent]“目录[backcolor=transparent]B[backcolor=transparent]/”，而“目录[backcolor=transparent]A[backcolor=transparent]/”[backcolor=transparent] [backcolor=transparent]和[backcolor=transparent] [backcolor=transparent]“目录[backcolor=transparent]B[backcolor=transparent]/”下的文件名不显示。
48. [backcolor=transparent]2.[backcolor=transparent] [backcolor=transparent]列出第二层目录[backcolor=transparent]A[backcolor=transparent]底下的目录和文件
49. [backcolor=transparent]根据[backcolor=transparent]API[backcolor=transparent]中请求约定，需要设置[backcolor=transparent]Prefix[backcolor=transparent]为“目录[backcolor=transparent]A[backcolor=transparent]”，[backcolor=transparent]Delimiter[backcolor=transparent]为[backcolor=transparent]"/"[backcolor=transparent]:
50. [backcolor=transparent]返回结果如下：
52. [backcolor=transparent]<?[backcolor=transparent]xml version[backcolor=transparent]=[backcolor=transparent]"1.0"[backcolor=transparent] encoding[backcolor=transparent]=[backcolor=transparent]"UTF-8"[backcolor=transparent]?>
53. [backcolor=transparent]<[backcolor=transparent]ListBucketResult[backcolor=transparent]>
54. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Name[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]-[backcolor=transparent]sample[backcolor=transparent]</[backcolor=transparent]Name[backcolor=transparent]>
55. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Prefix[backcolor=transparent]>目录[backcolor=transparent]A[backcolor=transparent]/</[backcolor=transparent]Prefix[backcolor=transparent]>
56. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Marker[backcolor=transparent]></[backcolor=transparent]Marker[backcolor=transparent]>
57. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]MaxKeys[backcolor=transparent]>[backcolor=transparent]1000[backcolor=transparent]</[backcolor=transparent]MaxKeys[backcolor=transparent]>
58. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Delimiter[backcolor=transparent]>[backcolor=transparent]/</[backcolor=transparent]Delimiter[backcolor=transparent]>
59. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]IsTruncated[backcolor=transparent]>[backcolor=transparent]false[backcolor=transparent]</[backcolor=transparent]IsTruncated[backcolor=transparent]>
60. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Contents[backcolor=transparent]>
61. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Key[backcolor=transparent]>目录[backcolor=transparent]A[backcolor=transparent]/文件[backcolor=transparent]C[backcolor=transparent]</[backcolor=transparent]Key[backcolor=transparent]>
62. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]LastModified[backcolor=transparent]>[backcolor=transparent]2015[backcolor=transparent]-[backcolor=transparent]11[backcolor=transparent]-[backcolor=transparent]06T09[backcolor=transparent]:[backcolor=transparent]36[backcolor=transparent]:[backcolor=transparent]00.000Z[backcolor=transparent]</[backcolor=transparent]LastModified[backcolor=transparent]>
63. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]ETag[backcolor=transparent]>[backcolor=transparent]"B026324C6904B2A9CB4B88D6D61C81D1"[backcolor=transparent]</[backcolor=transparent]ETag[backcolor=transparent]>
64. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Type[backcolor=transparent]>[backcolor=transparent]Normal[backcolor=transparent]</[backcolor=transparent]Type[backcolor=transparent]>
65. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Size[backcolor=transparent]>[backcolor=transparent]2[backcolor=transparent]</[backcolor=transparent]Size[backcolor=transparent]>
66. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]StorageClass[backcolor=transparent]>[backcolor=transparent]Standard[backcolor=transparent]</[backcolor=transparent]StorageClass[backcolor=transparent]>
67. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Owner[backcolor=transparent]>
68. [backcolor=transparent]      [backcolor=transparent]<[backcolor=transparent]ID[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]</[backcolor=transparent]ID[backcolor=transparent]>
69. [backcolor=transparent]      [backcolor=transparent]<[backcolor=transparent]DisplayName[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]</[backcolor=transparent]DisplayName[backcolor=transparent]>
70. [backcolor=transparent]    [backcolor=transparent]</[backcolor=transparent]Owner[backcolor=transparent]>
71. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]Contents[backcolor=transparent]>
72. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]Contents[backcolor=transparent]>
73. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Key[backcolor=transparent]>目录[backcolor=transparent]A[backcolor=transparent]/文件[backcolor=transparent]D[backcolor=transparent]</[backcolor=transparent]Key[backcolor=transparent]>
74. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]LastModified[backcolor=transparent]>[backcolor=transparent]2015[backcolor=transparent]-[backcolor=transparent]11[backcolor=transparent]-[backcolor=transparent]06T09[backcolor=transparent]:[backcolor=transparent]36[backcolor=transparent]:[backcolor=transparent]00.000Z[backcolor=transparent]</[backcolor=transparent]LastModified[backcolor=transparent]>
75. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]ETag[backcolor=transparent]>[backcolor=transparent]"B026324C6904B2A9CB4B88D6D61C81D1"[backcolor=transparent]</[backcolor=transparent]ETag[backcolor=transparent]>
76. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Type[backcolor=transparent]>[backcolor=transparent]Normal[backcolor=transparent]</[backcolor=transparent]Type[backcolor=transparent]>
77. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Size[backcolor=transparent]>[backcolor=transparent]2[backcolor=transparent]</[backcolor=transparent]Size[backcolor=transparent]>
78. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]StorageClass[backcolor=transparent]>[backcolor=transparent]Standard[backcolor=transparent]</[backcolor=transparent]StorageClass[backcolor=transparent]>
79. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Owner[backcolor=transparent]>
80. [backcolor=transparent]      [backcolor=transparent]<[backcolor=transparent]ID[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]</[backcolor=transparent]ID[backcolor=transparent]>
81. [backcolor=transparent]      [backcolor=transparent]<[backcolor=transparent]DisplayName[backcolor=transparent]>[backcolor=transparent]oss[backcolor=transparent]</[backcolor=transparent]DisplayName[backcolor=transparent]>
82. [backcolor=transparent]    [backcolor=transparent]</[backcolor=transparent]Owner[backcolor=transparent]>
83. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]Contents[backcolor=transparent]>
84. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
85. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Prefix[backcolor=transparent]>目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]B[backcolor=transparent]/</[backcolor=transparent]Prefix[backcolor=transparent]>
86. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
87. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
88. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Prefix[backcolor=transparent]>目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]C[backcolor=transparent]/</[backcolor=transparent]Prefix[backcolor=transparent]>
89. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
90. [backcolor=transparent]  [backcolor=transparent]<[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
91. [backcolor=transparent]    [backcolor=transparent]<[backcolor=transparent]Prefix[backcolor=transparent]>目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]D[backcolor=transparent]/</[backcolor=transparent]Prefix[backcolor=transparent]>
92. [backcolor=transparent]  [backcolor=transparent]</[backcolor=transparent]CommonPrefixes[backcolor=transparent]>
93. [backcolor=transparent]</[backcolor=transparent]ListBucketResult[backcolor=transparent]>
95. [backcolor=transparent]可以看到：
96. [backcolor=transparent]Contents[backcolor=transparent]返回的是第二层的文件：“目录[backcolor=transparent]A[backcolor=transparent]/文件[backcolor=transparent]C[backcolor=transparent]”，“目录[backcolor=transparent]A[backcolor=transparent]/文件[backcolor=transparent]D[backcolor=transparent]”。
97. [backcolor=transparent]CommonPrefixes[backcolor=transparent]返回的是第一层的目录：“目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]B[backcolor=transparent]/”，“目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]C[backcolor=transparent]/”和“目录[backcolor=transparent]A[backcolor=transparent]/目录[backcolor=transparent]D[backcolor=transparent]/”。而目录下的文件名不会被显示。

• API：Get Bucket
• SDK：Java SDK-列出存储空间中的文件