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SQL查询

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FOAM 2024-03-19 11:32:34 +08:00
parent 710a83d962
commit 7a658ce8b2
2 changed files with 11 additions and 45 deletions
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31
wms/src/main/java/com/yc/wms/service/impl/DcxServiceImpl.java
View File

@ -44,33 +44,24 @@ public class DcxServiceImpl implements DcxService {
int pageSize = query.getPageSize();//条数
System.out.println("当前页：" + pageNum);
System.out.println("条数：" + pageSize);
String sql = "from (SELECT ROW_NUMBER() OVER(ORDER BY it.id) AS RowNum, it.id ,"
String sql = " from (SELECT ROW_NUMBER() OVER(ORDER BY it.id) AS RowNum, it.id ,"
+ "it.code,"
+ "it.name"
+ " from Item it ";
sql += ") AS subquery ";
String sqlCount = "select count(id) " + sql;
String sqlCount = "select count(id) as nums " + sql;
sql = "select * " + sql + " WHERE RowNum BETWEEN " + (pageNum-1) * pageSize + " AND " + (pageNum) * pageSize;
log.info("sqlCount:"+sqlCount);
log.info("sql:"+sql);
//查询单挑数据
Map<String,Object> userMap2 = jdbcTemplate.queryForMap("select * from Container where ID=1", new HashMap<>());
//查询单数据
Map<String,Object> listCount = jdbcTemplate.queryForMap(sqlCount, new HashMap<>());
//查询多条数据据
List<Map<String,Object>> userMap = jdbcTemplate.queryForList("select * from Container ", new HashMap<>());
System.out.println(userMap);
/*List<Object[]> list=entity.createNativeQuery(sql).getResultList();
List listCount=entity.createNativeQuery(sqlCount).getResultList();
List<Map<String,Object>> maps = jdbcTemplate.queryForList(sql, new HashMap<>());
JSONArray data = new JSONArray();
for(Object[] obj:list){
for(Map<String,Object> m:maps){
int i=0;
JSONObject d = new JSONObject();
d.put("id",obj[i++]==null?"":obj[i-1]);
d.put("userNo",obj[i++]==null?"":obj[i-1]);
d.put("userName", obj[i++]==null?"":obj[i-1]);
d.put("id",m.get("id"));
d.put("userNo",m.get("code"));
d.put("userName", m.get("name"));
d.put("passWord","123456");
d.put("age",19);
d.put("sex",1);
@ -78,8 +69,8 @@ public class DcxServiceImpl implements DcxService {
d.put("roleId", 2);
d.put("isValid", false);
data.add(d);
}*/
return Result.success(userMap.size(),userMap);
}
return Result.success(Long.parseLong(listCount.get("nums").toString()),data);
}
}

25
wms/src/main/java/com/yc/wms/until/MybatisPlusConfig.java
View File

@ -1,25 +0,0 @@
package com.yc.wms.until;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
@MapperScan("com.yc.wms.mapper")
public class MybatisPlusConfig {
/**
* 新的分页插件,一缓和二缓遵循mybatis的规则,需要设置 MybatisConfiguration#useDeprecatedExecutor = false 避免缓存出现问题(该属性会在旧插件移除后一同移除)
*/
@Bean
public MybatisPlusInterceptor mybatisPlusInterceptor() {
MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
return interceptor;
}
}