接口完善

src/main/java/com/aiprose/querydsl/controller/DeptController.java

@@ -4,6 +4,7 @@ import com.aiprose.querydsl.entity.Dept;
 import com.aiprose.querydsl.entity.Emp;
 import com.aiprose.querydsl.entity.Response;
 import com.aiprose.querydsl.service.DeptService;
+import com.aiprose.querydsl.service.EmpService;
 import com.aiprose.querydsl.util.FixedPageData;
 import com.aiprose.querydsl.vos.DeptTreeVo;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -25,6 +26,8 @@ public class DeptController {
     @Autowired
     private DeptService service;
 
+    @Autowired
+    private EmpService empService;
 
     @Autowired
     private Response resp;
@@ -37,6 +40,14 @@ public class DeptController {
 
     @DeleteMapping("{id}")
     public Mono<Response> delete(@PathVariable("id") Integer id){
+        Boolean flag = empService.hasEmp(id);
+        if(flag){
+            return Mono.just(resp.failure("该部门下面有员工，无法删除"));
+        }
+        flag = service.hasChild(id);
+        if(flag){
+            return Mono.just(resp.failure("该部门下面有其他部门，无法删除"));
+        }
         service.deleteById(id);
         return Mono.just(resp.success());
     }

src/main/java/com/aiprose/querydsl/controller/EmpController.java

@@ -23,6 +23,7 @@ import java.util.Map;
  * @Date: 2020/9/14
  */
 @RestController
+@RequestMapping("emp")
 public class EmpController {
 
     @Autowired
@@ -32,8 +33,8 @@ public class EmpController {
     private Response resp;
 
     @GetMapping("list")
-    public Mono<Response> list(@RequestParam Integer page, @RequestParam Integer size, Emp emp){
-        FixedPageData pageData = service.list(page,size,emp);
+    public Mono<Response> list(@RequestParam Integer page, @RequestParam Integer size, String search){
+        FixedPageData pageData = service.list(page,size,search);
         return Mono.just(resp.page(pageData.getResults(),pageData.getTotal()));
     }
 

src/main/java/com/aiprose/querydsl/service/DeptService.java

@@ -56,7 +56,7 @@ public class DeptService extends BasicServiceImpl<Dept, Integer> {
             DeptTreeVo vo = new DeptTreeVo();
             BeanUtils.copyProperties(x, vo);
             List<DeptTreeVo> childs = getChilds(qDept, x.getId());
-            vo.setChild(childs);
+            vo.setChildren(childs);
             return vo;
         }).collect(Collectors.toList());
         return collect;
@@ -67,8 +67,14 @@ public class DeptService extends BasicServiceImpl<Dept, Integer> {
             DeptTreeVo vo = new DeptTreeVo();
             BeanUtils.copyProperties(x, vo);
             List<DeptTreeVo> childs = getChilds(qDept, x.getId());
-            vo.setChild(childs);
+            vo.setChildren(childs);
             return vo;
         }).collect(Collectors.toList());
     }
+
+    public Boolean hasChild(Integer id) {
+        QDept qDept = QDept.dept;
+        long l = queryFactory.selectFrom(qDept).where(qDept.pid.eq(id)).fetchCount();
+        return l>0;
+    }
 }

src/main/java/com/aiprose/querydsl/service/EmpService.java

@@ -2,14 +2,19 @@ package com.aiprose.querydsl.service;
 
 import com.aiprose.base.BasicServiceImpl;
 import com.aiprose.querydsl.entity.Emp;
+import com.aiprose.querydsl.entity.QDept;
 import com.aiprose.querydsl.entity.QEmp;
 import com.aiprose.querydsl.repository.EmpRepository;
 import com.aiprose.querydsl.util.FixedPageData;
+import com.aiprose.querydsl.vos.EmpVo;
+import com.querydsl.core.BooleanBuilder;
 import com.querydsl.core.QueryResults;
+import com.querydsl.core.Tuple;
 import com.querydsl.core.types.ExpressionUtils;
 import com.querydsl.core.types.Predicate;
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
@@ -19,6 +24,8 @@ import org.springframework.transaction.annotation.Transactional;
 import javax.annotation.PostConstruct;
 import javax.persistence.EntityManager;
 import javax.persistence.PersistenceContext;
+import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * @version 1.0
@@ -28,7 +35,7 @@ import javax.persistence.PersistenceContext;
  */
 @Transactional
 @Service
-public class EmpService extends BasicServiceImpl<Emp,Integer> {
+public class EmpService extends BasicServiceImpl<Emp, Integer> {
 
     @Autowired
     private JPAQueryFactory queryFactory;
@@ -46,26 +53,40 @@ public class EmpService extends BasicServiceImpl<Emp,Integer> {
         return null;
     }
 
-    public FixedPageData list(Integer page, Integer size, Emp emp) {
+    public FixedPageData list(Integer page, Integer size, String search) {
         FixedPageData pageData = new FixedPageData(page, size);
         QEmp qEmp = QEmp.emp;
-        Integer deptId = emp.getDeptId();
-        String empName = emp.getEmpName();
-        Long mobile = emp.getMobile();
+        QDept qDept = QDept.dept;
         Predicate predicate = qEmp.isNotNull();
-        if (StringUtils.isNotBlank(empName)) {
-            predicate = ExpressionUtils.and(predicate, qEmp.empName.eq(empName));
+        if (StringUtils.isNotBlank(search)) {
+            BooleanBuilder builder = new BooleanBuilder();
+            builder.or(qEmp.empName.like(search));
+            try {
+                Long aLong = Long.valueOf(search);
+                builder.or(qEmp.mobile.eq(aLong));
+            } catch (Exception e) {
+            }
+            predicate = ExpressionUtils.and(predicate, builder);
         }
-        if (deptId != null) {
-            predicate = ExpressionUtils.and(predicate, qEmp.deptId.eq(deptId));
-        }
-        if (mobile != null) {
-            predicate = ExpressionUtils.and(predicate, qEmp.mobile.eq(mobile));
-        }
-        QueryResults<Emp> queryResults = queryFactory.selectFrom(qEmp).where(predicate).offset(pageData.getOffset())
+//        if (deptId != null) {
+//            predicate = ExpressionUtils.and(predicate, qEmp.deptId.eq(deptId));
+//        }
+        QueryResults<Tuple> tupleQueryResults = queryFactory.select(qEmp, qDept.name).from(qEmp).leftJoin(qDept).on(qEmp.deptId.eq(qDept.id)).where(predicate).offset(pageData.getOffset())
                 .limit(pageData.getSize()).fetchResults();
-        pageData.setResults(queryResults.getResults());
-        pageData.setTotal(queryResults.getTotal());
+        List<EmpVo> collect = tupleQueryResults.getResults().stream().map(x -> {
+            EmpVo vo = new EmpVo();
+            BeanUtils.copyProperties(x.get(0, Emp.class), vo);
+            vo.setDeptName(x.get(1, String.class));
+            return vo;
+        }).collect(Collectors.toList());
+        pageData.setResults(collect);
+        pageData.setTotal(tupleQueryResults.getTotal());
         return pageData;
     }
+
+    public Boolean hasEmp(Integer id) {
+        QEmp qEmp = QEmp.emp;
+        long l = queryFactory.selectFrom(qEmp).where(qEmp.deptId.eq(id)).fetchCount();
+        return l > 0;
+    }
 }

src/main/java/com/aiprose/querydsl/vos/DeptTreeVo.java

@@ -17,9 +17,10 @@ import java.util.List;
  */
 @Data
 public class DeptTreeVo implements Serializable {
+    private Integer id;
     private String name;
     private String loc;
     private Integer pid;
     private Date cdate;
-    private List<DeptTreeVo> child;
+    private List<DeptTreeVo> children;
 }

src/main/java/com/aiprose/querydsl/vos/EmpVo.java

@@ -0,0 +1,28 @@
+package com.aiprose.querydsl.vos;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.Data;
+import org.springframework.format.annotation.DateTimeFormat;
+
+import javax.persistence.Column;
+import java.io.Serializable;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * @version 1.0
+ * @Auther: liuchao
+ * @company 北京中经网软件有限公司
+ * @Date: 2020/9/15
+ */
+@Data
+public class EmpVo implements Serializable {
+    private Integer id;
+    private String empName;
+    private String deptName;
+    private Long mobile;
+    private Integer deptId;
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private Date joindate;
+}