新增分页查询

src/main/java/com/genepioneer/common/result/Result.java

@@ -1,14 +1,18 @@
 package com.genepioneer.common.result;
 
 import lombok.Data;
+import java.io.Serializable; // 1. 导入Serializable包
 
 @Data
-public class Result<T> {
+public class Result<T> implements Serializable {
+    // 注意：添加序列化版本号
+    private static final long serialVersionUID = 1L;
+
     private Integer code; // 200成功，500失败
     private String msg;
     private T data;
 
-    // 成功返回
+    // 原有方法完全保留
     public static <T> Result<T> success(T data) {
         Result<T> result = new Result<>();
         result.setCode(200);
@@ -17,7 +21,6 @@ public class Result<T> {
         return result;
     }
 
-    // 失败返回
     public static <T> Result<T> error(String msg) {
         Result<T> result = new Result<>();
         result.setCode(500);

src/main/java/com/genepioneer/controller/LiteratureController.java

@@ -1,5 +1,6 @@
 package com.genepioneer.controller;
 
+import com.genepioneer.common.result.PageResult;
 import com.genepioneer.common.result.Result;
 import com.genepioneer.pojo.dto.LiteratureDTO;
 import com.genepioneer.service.LiteratureService;
@@ -8,6 +9,7 @@ import io.swagger.v3.oas.annotations.tags.Tag;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+@CrossOrigin
 @RestController
 @RequestMapping("/literature")
 @Tag(name = "文献管理", description = "文献相关接口")
@@ -31,7 +33,7 @@ public class LiteratureController {
         }
     }
 
-    // 新增：删除文献接口
+    // 删除文献
     @DeleteMapping("/delete/{id}") // 通过路径变量接收文献ID
     @Operation(summary = "删除文献")
     public Result<String> deleteLiterature(@PathVariable Long id) { // @PathVariable绑定路径中的id参数
@@ -43,4 +45,15 @@ public class LiteratureController {
             return Result.error("删除文献失败：" + e.getMessage());
         }
     }
+
+    //分页查询
+    @GetMapping("/list/{page}/{size}")
+    @Operation(summary = "分页查询文献")
+    public Result<PageResult<LiteratureDTO>> listLiterature(
+            @PathVariable int page,
+            @PathVariable int size
+    ) {
+        PageResult<LiteratureDTO> result = literatureService.pageQuery(page, size);
+        return Result.success(result);
+    }
 }

src/main/java/com/genepioneer/mapper/LiteratureMapper.java

@@ -4,6 +4,9 @@ import com.genepioneer.pojo.entity.LiteratureInfo;
 import org.apache.ibatis.annotations.Delete;
 import org.apache.ibatis.annotations.Insert;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
 
 @Mapper
 public interface LiteratureMapper {
@@ -17,4 +20,12 @@ public interface LiteratureMapper {
     // 根据文献ID删除数据
     @Delete("DELETE FROM literature_info WHERE id = #{id}")
     void deleteLiteratureById(Long id);
+
+    // 查询总数
+    @Select("SELECT COUNT(*) FROM literature_info")
+    int countLiterature();
+
+    // 分页查询
+    @Select("SELECT * FROM literature_info ORDER BY id DESC LIMIT #{size} OFFSET #{offset}")
+    List<LiteratureInfo> selectLiteratureByPage(int offset, int size);
 }

src/main/java/com/genepioneer/pojo/dto/LiteratureDTO.java

@@ -6,6 +6,7 @@ import java.math.BigDecimal;
 @Data
 public class LiteratureDTO {
     // 字段名要和前端提交的参数名一致
+    private Long id;
     private Integer year;
     private String articleTitle;
     private String journalName;

src/main/java/com/genepioneer/service/LiteratureService.java

@@ -1,5 +1,6 @@
 package com.genepioneer.service;
 
+import com.genepioneer.common.result.PageResult;
 import com.genepioneer.pojo.dto.LiteratureDTO;
 
 public interface LiteratureService {
@@ -8,4 +9,8 @@ public interface LiteratureService {
 
     // 删除文献
     void deleteLiterature(Long id);
+
+    // 文献分页查询
+    PageResult<LiteratureDTO> pageQuery(int page, int size);
+
 }

src/main/java/com/genepioneer/service/impl/LiteratureServiceImpl.java

@@ -1,5 +1,6 @@
 package com.genepioneer.service.impl;
 
+import com.genepioneer.common.result.PageResult;
 import com.genepioneer.pojo.dto.LiteratureDTO;
 import com.genepioneer.pojo.entity.LiteratureInfo;
 import com.genepioneer.mapper.LiteratureMapper;
@@ -8,6 +9,9 @@ import org.springframework.beans.BeanUtils; // Spring工具类，用于对象属
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 @Service
 public class LiteratureServiceImpl implements LiteratureService {
 
@@ -37,4 +41,28 @@ public class LiteratureServiceImpl implements LiteratureService {
     public void deleteLiterature(Long id) {
         literatureMapper.deleteLiteratureById(id);
     }
+
+    /**
+     * 文献分页查询
+     * @param page
+     * @param size
+     * @return
+     */
+    @Override
+    public PageResult<LiteratureDTO> pageQuery(int page, int size) {
+        // 查询总数量
+        int total = literatureMapper.countLiterature();
+        // 分页查询
+        int offset = (page - 1) * size;
+        List<LiteratureInfo> infoList = literatureMapper.selectLiteratureByPage(offset, size);
+
+        // PO->DTO
+        List<LiteratureDTO> dtoList = infoList.stream().map(info -> {
+            LiteratureDTO dto = new LiteratureDTO();
+            BeanUtils.copyProperties(info, dto);
+            return dto;
+        }).collect(Collectors.toList());
+
+        return new PageResult<>(total, dtoList);
+    }
 }