增加论文查询接口

doc/db_table.md

@@ -18,6 +18,7 @@
 | 列名 | 数据类型 | 约束条件 | 含义 |
 | ---- | -------- | -------- | ---- |
 | id | int | primary key; identity | 论文id |
+| title | varchar | not null | 论文标题 |
 | type | varchar | not null | 论文类型 |
 | author | varchar | not null | 论文作者 |
 | profession | varchar | not null | 学科专业 |

src/main/java/com/bupt/note/Controller/PaperController.java

@@ -4,11 +4,19 @@ import com.bupt.note.Model.Paper;
 import com.bupt.note.Repository.PapaerRepository;
 import com.bupt.note.ResponseData.ResponseData;
 import com.bupt.note.ResponseData.ResponseDataUtil;
+import com.bupt.note.dto.Page;
+import com.bupt.note.dto.QueryPaper;
 import com.bupt.note.dto.UploadPaper;
 import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import javax.persistence.criteria.Predicate;
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * 论文管理接口
  */
@@ -16,12 +24,14 @@ import org.springframework.web.bind.annotation.*;
 @RequestMapping(value = "/v1/api/paper")
 public class PaperController {
 
+    private Logger logger= LoggerFactory.getLogger(PaperController.class);
+
     @Autowired
     private PapaerRepository papaerRepository;
 
     @PostMapping("upload")
     public ResponseData upload(@RequestBody  UploadPaper uploadPaper, @CookieValue("user") String username) {
-        if (uploadPaper.getFileId() != null && uploadPaper.getYear() != null && StringUtils.isNoneEmpty(uploadPaper.getType(),
+        if (uploadPaper.getFileId() != null && uploadPaper.getYear() != null && StringUtils.isNoneEmpty(uploadPaper.getTitle(),uploadPaper.getType(),
                 uploadPaper.getAuthor(), uploadPaper.getProfession(), uploadPaper.getSchool(), uploadPaper.getSummary(),uploadPaper.getTag())){
             Paper paper = uploadPaper.toPaper();
             paper.setUserName(username);
@@ -36,5 +46,42 @@ public class PaperController {
         }
     }
 
+    @GetMapping("list")
+    public ResponseData list(QueryPaper queryPaper){
 
+        try {
+            Page<Paper> list=new Page<>();
+            list.setTotal(papaerRepository.count());
+            List<Paper> papers = papaerRepository.findAll((root, criteriaQuery, criteriaBuilder) -> {
+                List<Predicate> predicates = new ArrayList<>();
+                if(StringUtils.isNotEmpty(queryPaper.getTitle())){
+                    predicates.add(criteriaBuilder.like(root.get("title"),"%"+queryPaper.getTitle()+"%"));
+                }
+                if(StringUtils.isNotEmpty(queryPaper.getAuthor())){
+                    predicates.add(criteriaBuilder.like(root.get("author"),"%"+queryPaper.getAuthor()+"%"));
+                }
+                if(StringUtils.isNotEmpty(queryPaper.getTag())){
+                    predicates.add(criteriaBuilder.like(root.get("tag"),"%"+queryPaper.getTag()+"%"));
+                }
+                if(StringUtils.isNotEmpty(queryPaper.getProfession())){
+                    predicates.add(criteriaBuilder.like(root.get("profession"),"%"+queryPaper.getTag()+"%"));
+                }
+                if(queryPaper.getStartYear()!=null&&queryPaper.getEndYear()==null){
+                    predicates.add(criteriaBuilder.ge(root.get("year"),queryPaper.getStartYear()));
+                }else if(queryPaper.getStartYear()==null&&queryPaper.getEndYear()!=null){
+                    predicates.add(criteriaBuilder.le(root.get("year"),queryPaper.getEndYear()));
+                }else if(queryPaper.getStartYear()!=null&&queryPaper.getEndYear()!=null){
+                    predicates.add(criteriaBuilder.between(root.get("year"),queryPaper.getStartYear(),queryPaper.getEndYear()));
+                }
+                return criteriaQuery.where(predicates.toArray(new Predicate[0])).getRestriction();
+            });
+            list.setData(papers);
+            return ResponseDataUtil.buildSuccess(list);
+        } catch (Exception e) {
+            e.printStackTrace();
+            logger.error(String.valueOf(e));
+            return ResponseDataUtil.buildError();
+        }
+
+    }
 }

src/main/java/com/bupt/note/Model/Paper.java

@@ -10,6 +10,7 @@ import javax.persistence.*;
 public class Paper {
 
     private Long id;
+    private String title;
     private String type;
     private String author;
     private String profession;
@@ -30,6 +31,15 @@ public class Paper {
         this.id = id;
     }
 
+    @Column(nullable = false)
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
     @Column(nullable = false)
     public String getType() {
         return type;

src/main/java/com/bupt/note/NoteApplication.java

@@ -1,14 +1,9 @@
 package com.bupt.note;
 
-import com.bupt.note.Properties.FileProperties;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
 
 @SpringBootApplication
-@EnableConfigurationProperties({
-        FileProperties.class
-})
 public class NoteApplication {
 
     public static void main(String[] args) {

src/main/java/com/bupt/note/Properties/FileProperties.java

@@ -1,17 +0,0 @@
-package com.bupt.note.Properties;
-
-import org.springframework.boot.context.properties.ConfigurationProperties;
-
-@ConfigurationProperties(prefix = "file")
-public class FileProperties {
-
-    private String uploadDir;
-
-    public String getUploadDir() {
-        return uploadDir;
-    }
-
-    public void setUploadDir(String uploadDir) {
-        this.uploadDir = uploadDir;
-    }
-}

src/main/java/com/bupt/note/Repository/PapaerRepository.java

@@ -2,6 +2,7 @@ package com.bupt.note.Repository;
 
 import com.bupt.note.Model.Paper;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 
-public interface PapaerRepository extends JpaRepository<Paper, Long> {
+public interface PapaerRepository extends JpaRepository<Paper, Long>, JpaSpecificationExecutor<Paper> {
 }

src/main/java/com/bupt/note/dto/Page.java

@@ -0,0 +1,25 @@
+package com.bupt.note.dto;
+
+import java.util.List;
+
+public class Page<T> {
+    private List<T> data;
+
+    private Long total;
+
+    public List<T> getData() {
+        return data;
+    }
+
+    public void setData(List<T> data) {
+        this.data = data;
+    }
+
+    public Long getTotal() {
+        return total;
+    }
+
+    public void setTotal(Long total) {
+        this.total = total;
+    }
+}

src/main/java/com/bupt/note/dto/QueryPaper.java

@@ -0,0 +1,70 @@
+package com.bupt.note.dto;
+
+/**
+ * 论文查询
+ */
+public class QueryPaper {
+    private String title;
+    private String type;
+    private String author;
+    private String profession;
+    private String tag;
+    private Integer startYear;
+    private Integer endYear;
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public String getProfession() {
+        return profession;
+    }
+
+    public void setProfession(String profession) {
+        this.profession = profession;
+    }
+
+    public String getTag() {
+        return tag;
+    }
+
+    public void setTag(String tag) {
+        this.tag = tag;
+    }
+
+    public Integer getStartYear() {
+        return startYear;
+    }
+
+    public void setStartYear(Integer startYear) {
+        this.startYear = startYear;
+    }
+
+    public Integer getEndYear() {
+        return endYear;
+    }
+
+    public void setEndYear(Integer endYear) {
+        this.endYear = endYear;
+    }
+}

src/main/java/com/bupt/note/dto/UploadPaper.java

@@ -3,6 +3,7 @@ package com.bupt.note.dto;
 import com.bupt.note.Model.Paper;
 
 public class UploadPaper {
+    private String title;
     private String type;
     private String author;
     private String profession;
@@ -12,6 +13,14 @@ public class UploadPaper {
     private String tag;
     private Long fileId;
 
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
     public String getType() {
         return type;
     }
@@ -78,6 +87,7 @@ public class UploadPaper {
 
     public Paper toPaper(){
         Paper paper=new Paper();
+        paper.setTitle(this.title);
         paper.setType(this.type);
         paper.setAuthor(this.author);
         paper.setProfession(this.profession);