feat: 题目模块开发

jc-club-subject/jc-club-common/src/main/java/com/landaiqing/subject/common/entity/PageInfo.java

@@ -0,0 +1,37 @@
+package com.landaiqing.subject.common.entity;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * @Classname PageInfo
+ * @BelongsProject: jc-club
+ * @BelongsPackage: com.landaiqing.subject.common.entity
+ * @Author: landaiqing
+ * @CreateTime: 2024-02-16  11:52
+ * @Description: 分页请求实体
+ * @Version: 1.0
+ */
+@Data
+public class PageInfo implements Serializable {
+    private Integer pageNo = 1;
+    private Integer pageSize = 20;
+
+    public Integer getPageNo() {
+        if (pageNo == null || pageNo <= 1) {
+            return 1;
+        }
+        return pageNo;
+    }
+
+    public Integer getPageSize() {
+        if (pageSize == null || pageSize < 1 || pageSize > Integer.MAX_VALUE) {
+            return 20;
+        }
+        return pageSize;
+
+    }
+
+
+}

jc-club-subject/jc-club-common/src/main/java/com/landaiqing/subject/common/entity/PageResult.java

@@ -0,0 +1,57 @@
+package com.landaiqing.subject.common.entity;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * @Classname PageResult
+ * @BelongsProject: jc-club
+ * @BelongsPackage: com.landaiqing.subject.common.entity
+ * @Author: landaiqing
+ * @CreateTime: 2024-02-16  11:56
+ * @Description: 分页返回的实体
+ * @Version: 1.0
+ */
+@Data
+public class PageResult<T> implements Serializable {
+    private Integer pageNo = 1;
+    private Integer pageSize = 20;
+    private Integer total = 0;
+
+    private Integer totalPages = 0;
+
+    private List<T> result = Collections.emptyList();
+
+    private Integer start = 1;
+
+    private Integer end = 0;
+
+    public void setRecords(List<T> result) {
+        this.result = result;
+        if (result != null && result.size() > 0) {
+            setTotal(result.size());
+        }
+    }
+
+    public void setTotal(Integer total) {
+        this.total = total;
+        if (pageSize > 0) {
+            this.totalPages = (total / this.pageSize) + (total % this.pageSize == 0 ? 0 : 1);
+        } else {
+            this.totalPages = 0;
+        }
+        this.start = (this.pageSize > 0 ? (this.pageNo - 1) * this.pageSize : 0) + 1;
+        this.end = (this.start - 1 + this.pageSize * (this.pageNo > 0 ? 1 : 0));
+    }
+
+    public void setPageSize(Integer pageSize) {
+        this.pageSize = pageSize;
+    }
+
+    public void setPageNo(Integer pageNo) {
+        this.pageNo = pageNo;
+    }
+}