摘要：課程目標完成與與的的集成處理數據課程計劃使用完成博客后臺管理員列表的搜索課程分析想要完成列表的搜索，就必須對按提交搜索條件進行邏輯判斷組織也就是動態步驟加入依賴使用配置使用使用注解方式動態動

完成與spring boot 與的mybatis的集成處理數據curd

使用mybatis完成博客后臺管理員列表的jqgird搜索

想要完成列表的搜索，就必須對sql按提交搜索條件進行邏輯判斷組織sql,也就是動態sql

// build.gradle
dependencies {
    compile("org.springframework.boot:spring-boot-starter-web")
    compile("org.springframework.boot:spring-boot-starter-thymeleaf")
    compile("org.springframework.boot:spring-boot-devtools")
    // JPA Data (We are going to use Repositories, Entities, Hibernate, etc...)
    compile "org.springframework.boot:spring-boot-starter-data-jpa"
    // Use MySQL Connector-J
    compile "mysql:mysql-connector-java"
    // 使用mybatis
    compile("org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.2")
    developmentOnly("org.springframework.boot:spring-boot-devtools")
    testCompile("junit:junit")
}

spring:
  jpa:
    hibernate:
      ddl-auto: update
  datasource:
    url: jdbc:mysql://localhost:3306/db_sptest?useSSL=false
    username: mysqluser
    password: mysqlpwd
  mvc:
    static-path-pattern: /static/**
mybatis:
  type-aliases-package: hello.model

// model/AdminMapper
@Mapper
public interface AdminMapper {
    //使用注解方式
    @Select("SELECT * FROM ADMIN WHERE name = #{name} LIMIT 1")
    Admin findByName(String name);

    @Select("SELECT * FROM ADMIN WHERE id = #{id}")
    Admin findById(Integer id);

    //動態sql
    @SelectProvider(type = AdminService.class,method = "selectAdminLike")
    List findBySearch(Admin admin);

    //動態sql 返回行數
    @SelectProvider(type = AdminService.class,method = "countAdminSearch")
    @ResultType(Integer.class)
    int countBySearch(Admin admin);

}

// service/AdminService
import org.apache.ibatis.jdbc.SQL;

public class AdminService {

    // With conditionals (note the final parameters, required for the anonymous inner class to access them)
    public String selectAdminLike(Admin admin) {
        return new SQL() {{
            SELECT("A.name,A.email,A.id");
            FROM("ADMIN A");
            if (admin.getName() != null) {
                WHERE("A.name = "" + admin.getName() + """);
            }
            if (admin.getEmail() != null) {
                WHERE("A.email = " + admin.getEmail());
            }
        }}.toString();
    }

    public String countAdminSearch(Admin admin){
        return new SQL() {{
            SELECT("count(*)");
            FROM("ADMIN A");
            if (admin.getName() != null) {
                WHERE("A.name = "" + admin.getName() + """);
            }
            if (admin.getEmail() != null) {
                WHERE("A.email = " + admin.getEmail());
            }
        }}.toString();
    }
}

    // AdminController
    @GetMapping(path = "get_list")
    @ResponseBody
    public DataResponse getAdminList(
            Admin adminReq,
            @RequestParam(defaultValue = "1", value = "page") String page,
            @RequestParam(defaultValue = "10", value = "rows") String rows) {
        String total; //頁數
        List admin_list;
        int records;
        records = adminMapper.countBySearch(adminReq);
        int pageSize = Integer.valueOf(rows);
        total = Integer.toString((records + pageSize - 1) / pageSize);
        DataResponse response = new DataResponse<>();
        admin_list = adminMapper.findBySearch(adminReq);
        response.setTotal(total);
        response.setRows(admin_list);
        response.setPage(page);
        response.setRecords(records);
        return response;
    }

完成使用jqgrid+spring boot+mybatis 的數據列表搜索

遺留page 和 pageSize 的傳參控制，下節課對代碼進行稍微的改動就可以支持

目前使用了jpa的Hibernate entity 這么用合理么？