员工分页查询业务代码开发

sky-pojo/src/main/java/com/sky/entity/Employee.java

@@ -1,5 +1,6 @@
 package com.sky.entity;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -32,7 +33,7 @@ public class Employee implements Serializable {
 
     private Integer status;
 
-    //@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
     private LocalDateTime createTime;
 
     //@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")

sky-server/src/main/java/com/sky/config/WebMvcConfiguration.java

@@ -1,10 +1,13 @@
 package com.sky.config;
 
 import com.sky.interceptor.JwtTokenAdminInterceptor;
+import com.sky.json.JacksonObjectMapper;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
@@ -15,6 +18,8 @@ import springfox.documentation.service.ApiInfo;
 import springfox.documentation.spi.DocumentationType;
 import springfox.documentation.spring.web.plugins.Docket;
 
+import java.util.List;
+
 /**
  * 配置类，注册web层相关组件
  */
@@ -65,4 +70,18 @@ public class WebMvcConfiguration extends WebMvcConfigurationSupport {
         registry.addResourceHandler("/doc.html").addResourceLocations("classpath:/META-INF/resources/");
         registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
     }
+
+    /**
+     * 扩展Spring MVC框架的消息转换器
+     * @param converters the list of configured converters to extend
+     */
+    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
+        log.info("扩展消息转换器...");
+        // 创建一个消息转换器对象
+        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
+        // 需要为消息转换器设置一个对象转换器，对象转换器可以将Java对象序列化为Json数据
+        converter.setObjectMapper(new JacksonObjectMapper());
+        // 将自己的消息转换器加入容器中
+        converters.add(0,converter);
+    }
 }

sky-server/src/main/java/com/sky/controller/admin/EmployeeController.java

@@ -3,8 +3,10 @@ package com.sky.controller.admin;
 import com.sky.constant.JwtClaimsConstant;
 import com.sky.dto.EmployeeDTO;
 import com.sky.dto.EmployeeLoginDTO;
+import com.sky.dto.EmployeePageQueryDTO;
 import com.sky.entity.Employee;
 import com.sky.properties.JwtProperties;
+import com.sky.result.PageResult;
 import com.sky.result.Result;
 import com.sky.service.EmployeeService;
 import com.sky.utils.JwtUtil;
@@ -73,9 +75,17 @@ public class EmployeeController {
         return Result.success();
     }
 
-    /*页面查询*/
-    /*@GetMapping("/page")
-    public Result*/
+
+    /**
+     * @param employeePageQueryDTO
+     * @return
+     */
+    @GetMapping("/page")
+    public Result<PageResult> page( EmployeePageQueryDTO employeePageQueryDTO){ //由于不是JSON数据，不需要用RequestBody注解
+        log.info("员工分页查询：{}",employeePageQueryDTO);
+        PageResult pageResult = employeeService.pageQuery(employeePageQueryDTO);
+        return Result.success(pageResult);
+    }
 
 
     /**
@@ -89,4 +99,6 @@ public class EmployeeController {
         employeeService.save(employeeDTO);
         return Result.success();
     }
+
+
 }

sky-server/src/main/java/com/sky/mapper/EmployeeMapper.java

@@ -1,5 +1,7 @@
 package com.sky.mapper;
 
+import com.github.pagehelper.Page;
+import com.sky.dto.EmployeePageQueryDTO;
 import com.sky.entity.Employee;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Select;
@@ -26,4 +28,11 @@ public interface EmployeeMapper {
             "(#{name},#{username},#{password},#{phone},#{sex},#{idNumber},#{createTime},#{updateTime},#{createUser}," +
             "#{updateUser},#{status})")
     void insert(Employee employee);
+
+    /**
+     * 分页查询
+     * @param employeePageQueryDTO
+     * @return
+     */
+    Page<Employee> pageQuery(EmployeePageQueryDTO employeePageQueryDTO);
 }

sky-server/src/main/java/com/sky/service/EmployeeService.java

@@ -2,7 +2,9 @@ package com.sky.service;
 
 import com.sky.dto.EmployeeDTO;
 import com.sky.dto.EmployeeLoginDTO;
+import com.sky.dto.EmployeePageQueryDTO;
 import com.sky.entity.Employee;
+import com.sky.result.PageResult;
 
 public interface EmployeeService {
 
@@ -18,4 +20,11 @@ public interface EmployeeService {
      * @param employeeDTO
      */
     void save(EmployeeDTO employeeDTO);
+
+    /**
+     * 分页查询
+     * @param employeePageQueryDTO
+     * @return
+     */
+    PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO);
 }

sky-server/src/main/java/com/sky/service/impl/EmployeeServiceImpl.java

@@ -1,16 +1,20 @@
 package com.sky.service.impl;
 
+import com.github.pagehelper.Page;
+import com.github.pagehelper.PageHelper;
 import com.sky.constant.MessageConstant;
 import com.sky.constant.PasswordConstant;
 import com.sky.constant.StatusConstant;
 import com.sky.context.BaseContext;
 import com.sky.dto.EmployeeDTO;
 import com.sky.dto.EmployeeLoginDTO;
+import com.sky.dto.EmployeePageQueryDTO;
 import com.sky.entity.Employee;
 import com.sky.exception.AccountLockedException;
 import com.sky.exception.AccountNotFoundException;
 import com.sky.exception.PasswordErrorException;
 import com.sky.mapper.EmployeeMapper;
+import com.sky.result.PageResult;
 import com.sky.service.EmployeeService;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -18,6 +22,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.util.DigestUtils;
 
 import java.time.LocalDateTime;
+import java.util.List;
 
 @Service
 public class EmployeeServiceImpl implements EmployeeService {
@@ -90,4 +95,16 @@ public class EmployeeServiceImpl implements EmployeeService {
         employeeMapper.insert(employee);
     }
 
+    @Override
+    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
+        // 开始分页查询
+        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
+
+        Page<Employee> page =  employeeMapper.pageQuery(employeePageQueryDTO);
+        long total = page.getTotal();
+        List<Employee> records = page.getResult();
+
+        return new PageResult(total,records);
+    }
+
 }

sky-server/src/main/resources/mapper/EmployeeMapper.xml

@@ -2,4 +2,13 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="com.sky.mapper.EmployeeMapper">
+    <select id="pageQuery" resultType="com.sky.entity.Employee">
+        select * from employee
+        <where>
+            <if test="name != null and name != ''">
+                and name like concat('%',#{name},'%')
+            </if>
+        </where>
+        order by create_time desc
+    </select>
 </mapper>