跨域+模糊分页查询

pom.xml

@@ -67,6 +67,13 @@
 			<version>4.3.0</version>
 		</dependency>
 
+		<dependency>
+			<groupId>com.github.pagehelper</groupId>
+			<artifactId>pagehelper-spring-boot-starter</artifactId>
+			<version>1.3.0</version>
+		</dependency>
+
+
 		<!-- JWT依赖（生成/解析令牌） -->
 		<dependency>
 			<groupId>io.jsonwebtoken</groupId>

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

@@ -0,0 +1,15 @@
+package com.genepioneer.common.result;
+
+import lombok.Data;
+import java.util.List;
+
+@Data
+public class PageResult<T> {
+    private long total;
+    private List<T> records;
+
+    public PageResult(long total, List<T> records) {
+        this.total = total;
+        this.records = records;
+    }
+}

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

@@ -3,6 +3,7 @@ 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.pojo.dto.LiteraturePageQueryDTO;
 import com.genepioneer.service.LiteratureService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -47,13 +48,10 @@ public class LiteratureController {
     }
 
     //分页查询
-    @GetMapping("/list/{page}/{size}")
+    @GetMapping("/page")
     @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);
+    public Result<PageResult<LiteratureDTO>> page(LiteraturePageQueryDTO queryDTO) {
+        PageResult<LiteratureDTO> result = literatureService.pageQuery(queryDTO);
         return Result.success(result);
     }
 }

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

@@ -1,6 +1,8 @@
 package com.genepioneer.mapper;
 
+import com.genepioneer.pojo.dto.LiteraturePageQueryDTO;
 import com.genepioneer.pojo.entity.LiteratureInfo;
+import com.github.pagehelper.Page;
 import org.apache.ibatis.annotations.Delete;
 import org.apache.ibatis.annotations.Insert;
 import org.apache.ibatis.annotations.Mapper;
@@ -21,11 +23,5 @@ public interface LiteratureMapper {
     @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);
+    Page<LiteratureInfo> pageQuery(LiteraturePageQueryDTO queryDTO);
 }

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

@@ -0,0 +1,18 @@
+package com.genepioneer.pojo.dto;
+
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+@Data
+public class LiteraturePageQueryDTO {
+    private Integer page;
+    private Integer pageSize;
+    private String articleTitle;
+    private Integer year;
+    private String journalName;
+    private String literatureType;
+    private String sampleSource;
+    private BigDecimal impactFactorMin;
+    private BigDecimal impactFactorMax;
+}

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

@@ -2,6 +2,7 @@ package com.genepioneer.service;
 
 import com.genepioneer.common.result.PageResult;
 import com.genepioneer.pojo.dto.LiteratureDTO;
+import com.genepioneer.pojo.dto.LiteraturePageQueryDTO;
 
 public interface LiteratureService {
     // 新增文献
@@ -11,6 +12,6 @@ public interface LiteratureService {
     void deleteLiterature(Long id);
 
     // 文献分页查询
-    PageResult<LiteratureDTO> pageQuery(int page, int size);
+    PageResult<LiteratureDTO> pageQuery(LiteraturePageQueryDTO queryDTO);
 
 }

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

@@ -1,7 +1,9 @@
 package com.genepioneer.service.impl;
-
+import com.github.pagehelper.Page;
+import com.github.pagehelper.PageHelper;
 import com.genepioneer.common.result.PageResult;
 import com.genepioneer.pojo.dto.LiteratureDTO;
+import com.genepioneer.pojo.dto.LiteraturePageQueryDTO;
 import com.genepioneer.pojo.entity.LiteratureInfo;
 import com.genepioneer.mapper.LiteratureMapper;
 import com.genepioneer.service.LiteratureService;
@@ -44,25 +46,26 @@ public class LiteratureServiceImpl implements LiteratureService {
 
     /**
      * 文献分页查询
-     * @param page
-     * @param size
+     * @param queryDTO
      * @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);
+    public PageResult<LiteratureDTO> pageQuery(LiteraturePageQueryDTO queryDTO) {
 
-        // PO->DTO
-        List<LiteratureDTO> dtoList = infoList.stream().map(info -> {
+        // 1) PageHelper 开始分页
+        PageHelper.startPage(queryDTO.getPage(), queryDTO.getPageSize());
+
+        // 2) 执行 mapper 查询（会被 PageHelper 自动加 limit）
+        Page<LiteratureInfo> page = literatureMapper.pageQuery(queryDTO);
+
+        // 3) 取 total + records
+        long total = page.getTotal();
+        List<LiteratureDTO> records = page.getResult().stream().map(info -> {
             LiteratureDTO dto = new LiteratureDTO();
             BeanUtils.copyProperties(info, dto);
             return dto;
         }).collect(Collectors.toList());
 
-        return new PageResult<>(total, dtoList);
+        return new PageResult<>(total, records);
     }
 }

src/main/resources/mapper/LiteratureMapper.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.genepioneer.mapper.LiteratureMapper">
+
+    <select id="pageQuery" resultType="com.genepioneer.pojo.entity.LiteratureInfo">
+        select *
+        from literature_info
+        <where>
+            <if test="year != null">
+                and year = #{year}
+            </if>
+            <if test="articleTitle != null and articleTitle != ''">
+                and article_title like concat('%', #{articleTitle}, '%')
+            </if>
+            <if test="journalName != null and journalName != ''">
+                and journal_name like concat('%', #{journalName}, '%')
+            </if>
+            <if test="literatureType != null and literatureType != ''">
+                and literature_type = #{literatureType}
+            </if>
+            <if test="sampleSource != null and sampleSource != ''">
+                and sample_source like concat('%', #{sampleSource}, '%')
+            </if>
+        </where>
+        order by id desc
+    </select>
+
+</mapper>