修改AddComment接口,新增PostReply实体类

Change-Id: I35c8a3d12e0dbfade1fbe3c7eefdd72d7030b6a7
diff --git a/src/main/java/object/PostReply.java b/src/main/java/object/PostReply.java
new file mode 100644
index 0000000..bc95625
--- /dev/null
+++ b/src/main/java/object/PostReply.java
@@ -0,0 +1,38 @@
+package object;
+
+import java.util.Date;
+import javax.persistence.*;
+
+@Entity
+@Table(name = "PostReply")
+public class PostReply {
+    @Id
+    @Column(name = "reply_id", length = 64, nullable = false)
+    public String replyid;
+
+    @Column(name = "post_id", length = 64, nullable = false)
+    public String postid;
+
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "post_id", referencedColumnName = "post_id", 
+                foreignKey = @ForeignKey(name = "fk_pr_post"), 
+                insertable = false, updatable = false)
+    public Post post;
+
+    @Column(name = "author_id", length = 36, nullable = false)
+    public String authorid;
+
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "author_id", referencedColumnName = "user_id", 
+                foreignKey = @ForeignKey(name = "fk_pr_user"), 
+                insertable = false, updatable = false)
+    public User author;
+
+    @Lob
+    @Column(name = "content", nullable = false)
+    public String content;
+
+    @Column(name = "created_at", nullable = false)
+    @Temporal(TemporalType.TIMESTAMP)
+    public Date createdAt;
+}
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