diff --git a/src/main/java/entity/SeedDownload.java b/src/main/java/entity/SeedDownload.java
new file mode 100644
index 0000000..caafda8
--- /dev/null
+++ b/src/main/java/entity/SeedDownload.java
@@ -0,0 +1,119 @@
+package entity;
+
+import java.time.LocalDateTime;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "SeedDownload")
+public class SeedDownload {
+
+    @Id
+    @Column(name = "task_id", length = 64, nullable = false)
+    public String taskId;
+
+    @Column(name = "user_id", length = 36, nullable = false)
+    public String userId;
+
+    @Column(name = "seed_id", length = 64, nullable = false)
+    public String seedId;
+
+    @Column(name = "download_start", nullable = false)
+    public LocalDateTime downloadStart;
+
+    @Column(name = "download_end")
+    public LocalDateTime downloadEnd;
+
+    @Column(name = "is_dedicated", nullable = false)
+    public boolean isDedicated;
+
+    @Column(name = "client_ip", length = 45)
+    public String clientIp;
+
+    // Constructors
+    public SeedDownload() {}
+
+    public SeedDownload(String taskId, String userId, String seedId, LocalDateTime downloadStart, LocalDateTime downloadEnd, boolean isDedicated, String clientIp) {
+        this.taskId = taskId;
+        this.userId = userId;
+        this.seedId = seedId;
+        this.downloadStart = downloadStart;
+        this.downloadEnd = downloadEnd;
+        this.isDedicated = isDedicated;
+        this.clientIp = clientIp;
+    }
+
+    // Getters and Setters
+    public String getTaskId() {
+        return taskId;
+    }
+
+    public void setTaskId(String taskId) {
+        this.taskId = taskId;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getSeedId() {
+        return seedId;
+    }
+
+    public void setSeedId(String seedId) {
+        this.seedId = seedId;
+    }
+
+    public LocalDateTime getDownloadStart() {
+        return downloadStart;
+    }
+
+    public void setDownloadStart(LocalDateTime downloadStart) {
+        this.downloadStart = downloadStart;
+    }
+
+    public LocalDateTime getDownloadEnd() {
+        return downloadEnd;
+    }
+
+    public void setDownloadEnd(LocalDateTime downloadEnd) {
+        this.downloadEnd = downloadEnd;
+    }
+
+    public boolean isDedicated() {
+        return isDedicated;
+    }
+
+    public void setDedicated(boolean dedicated) {
+        isDedicated = dedicated;
+    }
+
+    public String getClientIp() {
+        return clientIp;
+    }
+
+    public void setClientIp(String clientIp) {
+        this.clientIp = clientIp;
+    }
+
+    // equals and hashCode based on taskId
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof SeedDownload)) return false;
+        SeedDownload that = (SeedDownload) o;
+        return taskId != null && taskId.equals(that.taskId);
+    }
+
+    @Override
+    public int hashCode() {
+        return 31 + (taskId != null ? taskId.hashCode() : 0);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/entity/config.java b/src/main/java/entity/config.java
index 0cf39c1..71f3b4f 100644
--- a/src/main/java/entity/config.java
+++ b/src/main/java/entity/config.java
@@ -1,14 +1,15 @@
 package entity;
 
 public class config {
-    public String TrackerURL;
-    public int FarmNumber;
-    public int FakeTime;
-    public int BegVote;
+    public static final String TrackerURL="";
+    public static final int FarmNumber=3;
+    public static final int FakeTime=3;
+    public static final int BegVote=3;
     // 请根据实际环境修改为可达的地址
-    public String SqlURL = "192.168.5.9:3306";
-    public String Database = "pt_database";
-    public String TestDatabase = "pt_database_test";
-    public String SqlPassword = "123456";
-    public String SqlUsername = "root";
+    public static final String SqlURL = "192.168.5.9:3306";
+    public static final String Database = "pt_database";
+    public static final String TestDatabase = "pt_database_test";
+    public static final String SqlPassword = "123456";
+    public static final String SqlUsername = "root";
+    public static final String TORRENT_STORAGE_DIR = "torrents";
 }