BookMongoServiceImpl.java
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package com.songshu.mongo.service.impl;
import com.songshu.mongo.model.dto.BookDTO;
import com.songshu.mongo.model.dto.Room;
import com.songshu.mongo.service.BookMongoService;
import com.songshu.mongo.tools.JDBCUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.stereotype.Service;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.Statement;
import java.sql.Timestamp;
import java.util.List;
import java.util.regex.Pattern;
/**
* cw
* 案例
*/
@Service
public class BookMongoServiceImpl implements BookMongoService {
@Autowired
private MongoTemplate mongoTemplate;
/**
* 新增
* @param bookDTO
* @return
*/
@Override
public Boolean inserBookInfo(BookDTO bookDTO) {
mongoTemplate.insert(bookDTO);
return true;
}
/**
* 批量新增
* @param bookDTOList
* @return
*/
@Override
public Boolean inserBatchBookInfo(List<BookDTO> bookDTOList) {
mongoTemplate.insert(bookDTOList,BookDTO.class);
return true;
}
/**
* 修改
* @param query
* @param update
* @return
*/
@Override
public Boolean updateBookInfo(Query query, Update update) {
mongoTemplate.updateMulti(query,update,BookDTO.class);
return true;
}
/**
* 查所有
* @return
*/
@Override
public List<BookDTO> findAllBookInfo() {
List<BookDTO> bookDTOList = mongoTemplate.findAll(BookDTO.class);
return bookDTOList;
}
/**
* 根据书名查询: 精准
* @param name
* @return
*/
@Override
public List<BookDTO> findBookInfoByName(String name) {
Query query = Query.query(Criteria.where("name").is(name));
return mongoTemplate.find(query,BookDTO.class);
}
/**
* 根据书名查询: 模糊
* @param name
* @return
*/
@Override
public List<BookDTO> findBookInfoReName(String name) {
// ^.*表示字符前面、*$表示字符后面
Pattern compile = Pattern.compile("^.*" + name + ".*$", Pattern.CASE_INSENSITIVE);
Query query= Query.query(Criteria.where("name").regex(compile));
return mongoTemplate.find(query,BookDTO.class);
}
/**
* 根据阅读量:范围查询并排序
* @param minReadedNum
* @param maxReadedNum
* @return
*/
@Override
public List<BookDTO> findBookInfoReRange(Double minReadedNum, Double maxReadedNum) {
// query两种方式
Query query = Query.query(Criteria.where("readedNum").gte(minReadedNum).lte(maxReadedNum))
.with(new Sort(new Sort.Order(Sort.Direction.ASC,"readedNum")));
return mongoTemplate.find(query,BookDTO.class);
}
/**
* 排序-分页查询
* @param minReadedNum
* @param maxReadedNum
* @param pageNum
* @param pageSize
* @return
*/
@Override
public List<BookDTO> findBookInfoPage(Double minReadedNum, Double maxReadedNum, Integer pageNum, Integer pageSize) {
Query query = Query.query(Criteria.where("readedNum").gte(minReadedNum).lte(maxReadedNum))
.with(new Sort(new Sort.Order(Sort.Direction.ASC,"readedNum")))
.with(new PageRequest(pageNum-1,pageSize));
return mongoTemplate.find(query, BookDTO.class);
}
@Override
public List<Room> findAllBookInfo3() {
List<Room> all = mongoTemplate.findAll(Room.class);
long start = System.currentTimeMillis();
try {
Connection conn = JDBCUtil.getConnection();
Statement stat = JDBCUtil.getStatement();
JDBCUtil.executeUpdate("DELETE FROM room_company_ids");
JDBCUtil.executeUpdate("DELETE FROM room");
String sql = "insert into room(id, _id, building, name, area, rentalstatus, space, owner, created, modified, created_by, modified_by, company_id) " +
"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
PreparedStatement ps = null;
ps = conn.prepareStatement(sql);
conn.setAutoCommit(false);//取消自动提交
int size = all.size();
int group = 500;
for (int i = 1; i < size; i++) {
Room room = all.get(i);
ps.setObject(1, i);
ps.setObject(2,room.get_id() );
ps.setObject(3, room.getBuilding());
ps.setObject(4, room.getName());
ps.setObject(5, room.getArea());
ps.setObject(6, room.getRentalstatus());
ps.setObject(7, room.getSpace());
ps.setObject(8, room.getOwner());
ps.setTimestamp(9, new Timestamp(room.getCreated().getTime()));
ps.setTimestamp(10, new Timestamp(room.getModified().getTime()));
ps.setObject(11, null);
ps.setObject(12, null);
ps.setObject(13, null);
ps.addBatch(); // 将sql语句打包到一个容器中
if (i % group == 0 || i == size-1) {
ps.executeBatch(); // 将容器中的sql语句提交
ps.clearBatch(); // 清空容器,为下一次打包做准备
}
}
ps.executeBatch();
ps.clearBatch();
conn.commit();//所有语句都执行完毕后才手动提交sql语句
} catch (Exception e) {
e.printStackTrace();
} finally {
JDBCUtil.getClose();
}
return all;
}
}