oss文件上传(带回调)

[{"title":"（ 239 个子文件 52.4MB ） oss文件上传(带回调)","children":[{"title":"maven.yml <span style='color:#111;'> 1.06KB </span>","children":null,"spread":false},{"title":"maven-publish.yml <span style='color:#111;'> 1.06KB </span>","children":null,"spread":false},{"title":"mvnw.cmd <span style='color:#111;'> 6.63KB </span>","children":null,"spread":false},{"title":"mvnw <span style='color:#111;'> 10.14KB </span>","children":null,"spread":false},{"title":"DemoApplicationTests.java <span style='color:#111;'> 224B </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]