添加浏览器直接上传到 OSS 时获取 policy 的接口

dfs-web/src/main/java/cn/reghao/dfs/web/controller/SignController.java

@@ -0,0 +1,63 @@
+package cn.reghao.dfs.web.controller;
+
+import cn.reghao.jutil.jdk.result.WebResult;
+import cn.reghao.dfs.web.model.dto.Policy;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author reghao
+ * @date 2023-04-21 13:08:05
+ */
+@Api(tags = "签名接口")
+@RestController
+@RequestMapping("/ajax")
+public class SignController {
+    @ApiOperation("获取存储桶的策略配置")
+    @GetMapping(value = "/policy", produces = MediaType.APPLICATION_JSON_VALUE)
+    public String getBucketPolicy() {
+        Policy policy = new Policy();
+        policy.setExpiration(LocalDateTime.now().toString());
+
+        List<Object> conditions = new ArrayList<>();
+        Map<String, String> map = new HashMap<>();
+        map.put("bucket", "chengdu");
+        map.put("acl", "public-read");
+        map.put("success_action_redirect", "sigv4examplebucket");
+        map.put("x-amz-meta-uuid", "sigv4examplebucket");
+        map.put("x-amz-server-side-encryption", "sigv4examplebucket");
+        map.put("x-amz-credential", "sigv4examplebucket");
+        map.put("x-amz-algorithm", "sigv4examplebucket");
+        map.put("x-amz-date", "sigv4examplebucket");
+        conditions.add(map);
+
+        List<String> list1 = new ArrayList<>();
+        list1.add("starts-with");
+        list1.add("$key");
+        list1.add("user/user1/");
+        conditions.add(list1);
+
+        List<String> list2 = new ArrayList<>();
+        list2.add("starts-with");
+        list2.add("$Content-Type");
+        list2.add("image/");
+        conditions.add(list2);
+
+        List<String> list3 = new ArrayList<>();
+        list3.add("starts-with");
+        list3.add("$x-amz-meta-tag");
+        list3.add("");
+        conditions.add(list3);
+        return WebResult.success(conditions);
+    }
+}

dfs-web/src/main/java/cn/reghao/dfs/web/model/dto/Policy.java

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+package cn.reghao.dfs.web.model.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.List;
+
+/**
+ * @author reghao
+ * @date 2023-04-21 13:54:58
+ */
+@Setter
+@Getter
+public class Policy {
+    private String expiration;
+    private List<Object> conditions;
+}