1导入pom文件
代码语言：javascript复制<!-- mongodb -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>2编写配置文件
代码语言：javascript复制spring:
data:
mongodb:
host: *
port: 27017
database: appReport
username: *
password: *3.编写基础 MongoDbDao
代码语言：javascript复制package com.un.common.utils.mongodb;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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 java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.List;
/**
* @author shiye
* @create 2020-06-08 10:18
* @Description: mongoDB基础方法封装
*/
public abstract class MongoDbDao<T> {
protected Logger logger = LoggerFactory.getLogger(MongoDbDao.class);
/**
* 反射获取泛型类型
*
* @return
*/
protected abstract Class<T> getEntityClass();
@Autowired
private MongoTemplate mongoTemplate;
/***
* 保存一个对象
* @param t
*/
public void save(T t) {
logger.info("-------------->MongoDB save start");
this.mongoTemplate.save(t);
}
/***
* 根据id从几何中查询对象
* @param id
* @return
*/
public T queryById(Integer id) {
Query query = new Query(Criteria.where("_id").is(id));
logger.info("-------------->MongoDB find start");
return this.mongoTemplate.findOne(query, this.getEntityClass());
}
/**
* 根据条件查询集合
*
* @param object
* @return
*/
public List<T> queryList(T object) {
Query query = getQueryByObject(object);
logger.info("-------------->MongoDB find start");
return mongoTemplate.find(query, this.getEntityClass());
}
/**
* 根据条件查询只返回一个文档
*
* @param object
* @return
*/
public T queryOne(T object) {
Query query = getQueryByObject(object);
logger.info("-------------->MongoDB find start");
return mongoTemplate.findOne(query, this.getEntityClass());
}
/***
* 根据条件分页查询
* @param object
* @param start 查询起始值
* @param size 查询大小
* @return
*/
public List<T> getPage(T object, int start, int size) {
Query query = getQueryByObject(object);
query.skip(start);
query.limit(size);
logger.info("-------------->MongoDB queryPage start");
return this.mongoTemplate.find(query, this.getEntityClass());
}
/***
* 根据条件查询库中符合条件的记录数量
* @param object
* @return
*/
public Long getCount(T object) {
Query query = getQueryByObject(object);
logger.info("-------------->MongoDB Count start");
return this.mongoTemplate.count(query, this.getEntityClass());
}
/***
* 删除对象
* @param t
* @return
*/
public int delete(T t) {
logger.info("-------------->MongoDB delete start");
return (int) this.mongoTemplate.remove(t).getDeletedCount();
}
/**
* 根据id删除
*
* @param id
*/
public void deleteById(Integer id) {
Criteria criteria = Criteria.where("_id").is(id);
if (null != criteria) {
Query query = new Query(criteria);
T obj = this.mongoTemplate.findOne(query, this.getEntityClass());
logger.info("-------------->MongoDB deleteById start");
if (obj != null) {
this.delete(obj);
}
}
}
/*MongoDB中更新操作分为三种
* 1：updateFirst 修改第一条
* 2：updateMulti 修改所有匹配的记录
* 3：upsert 修改时如果不存在则进行添加操作
* */
/**
* 修改匹配到的第一条记录
*
* @param srcObj
* @param targetObj
*/
public void updateFirst(T srcObj, T targetObj) {
Query query = getQueryByObject(srcObj);
Update update = getUpdateByObject(targetObj);
logger.info("-------------->MongoDB updateFirst start");
this.mongoTemplate.updateFirst(query, update, this.getEntityClass());
}
/***
* 修改匹配到的所有记录
* @param srcObj
* @param targetObj
*/
public void updateMulti(T srcObj, T targetObj) {
Query query = getQueryByObject(srcObj);
Update update = getUpdateByObject(targetObj);
logger.info("-------------->MongoDB updateFirst start");
this.mongoTemplate.updateMulti(query, update, this.getEntityClass());
}
/***
* 修改匹配到的记录，若不存在该记录则进行添加
* @param srcObj
* @param targetObj
*/
public void updateInsert(T srcObj, T targetObj) {
Query query = getQueryByObject(srcObj);
Update update = getUpdateByObject(targetObj);
logger.info("-------------->MongoDB updateInsert start");
this.mongoTemplate.upsert(query, update, this.getEntityClass());
}
/**
* 将查询条件对象转换为query
*
* @param object
* @return
* @author Jason
*/
private Query getQueryByObject(T object) {
Query query = new Query();
String[] fileds = getFiledName(object);
Criteria criteria = new Criteria();
for (int i = 0; i < fileds.length; i ) {
String filedName = (String) fileds[i];
Object filedValue = getFieldValueByName(filedName, object);
if (filedValue != null) {
criteria.and(filedName).is(filedValue);
}
}
query.addCriteria(criteria);
return query;
}
/**
* 将查询条件对象转换为update
*
* @param object
* @return
* @author Jason
*/
private Update getUpdateByObject(T object) {
Update update = new Update();
String[] fileds = getFiledName(object);
for (int i = 0; i < fileds.length; i ) {
String filedName = (String) fileds[i];
Object filedValue = getFieldValueByName(filedName, object);
if (filedValue != null) {
update.set(filedName, filedValue);
}
}
return update;
}
/***
* 获取对象属性返回字符串数组
* @param o
* @return
*/
private static String[] getFiledName(Object o) {
Field[] fields = o.getClass().getDeclaredFields();
String[] fieldNames = new String[fields.length];
for (int i = 0; i < fields.length; i) {
fieldNames[i] = fields[i].getName();
}
return fieldNames;
}
/***
* 根据属性获取对象属性值
* @param fieldName
* @param o
* @return
*/
private static Object getFieldValueByName(String fieldName, Object o) {
try {
String e = fieldName.substring(0, 1).toUpperCase();
String getter = "get" e fieldName.substring(1);
Method method = o.getClass().getMethod(getter, new Class[0]);
return method.invoke(o, new Object[0]);
} catch (Exception var6) {
return null;
}
}
}4.编写需要具体处理的对象
代码语言：javascript复制package com.un.project.system.domain.vo;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import javax.validation.constraints.NotNull;
/**
* App上报对象
*
* @author shiye
* @create 2020-06-08 10:25
*/
@ApiModel
public class AppReportVo {
@ApiModelProperty(value = "住户id")
@NotNull(message = "住户id不能为空")
private String hId;
@ApiModelProperty(value = "社区id")
@NotNull(message = "社区id不能为空")
private String coId;
public String gethId() {
return hId;
}
public void sethId(String hId) {
this.hId = hId;
}
public String getCoId() {
return coId;
}
public void setCoId(String coId) {
this.coId = coId;
}
}5.编写服务类（具体使用到了哪个方法，就在这个接口定义一下这个方法）
代码语言：javascript复制package com.un.project.system.service;
import com.un.project.system.domain.vo.AppReportVo;
import java.util.List;
/**
* @author shiye
* @create 2020-06-09 9:01
*/
public interface AppReportService {
/**
* 保存一条数据
*
* @param appReportVo
*/
public void save(AppReportVo appReportVo);
/**
* 根据条件查询集合
*
* @param appReportVo
* @return
*/
public List<AppReportVo> queryList(AppReportVo appReportVo);
}package com.un.project.system.service.impl;
import com.un.common.utils.mongodb.MongoDbDao;
import com.un.project.system.domain.vo.AppReportVo;
import com.un.project.system.service.AppReportService;
import org.springframework.stereotype.Service;
/**
* @author shiye
* @create 2020-06-09 9:03
*/
@Service
public class AppReportServiceImpl extends MongoDbDao<AppReportVo> implements AppReportService {
@Override
protected Class<AppReportVo> getEntityClass() {
return AppReportVo.class;
}
}6.编写controller测试数据
代码语言：javascript复制package com.un.project.system.controller;
import com.un.framework.web.controller.BaseController;
import com.un.framework.web.domain.AjaxResult;
import com.un.project.system.domain.vo.AppReportVo;
import com.un.project.system.service.AppReportService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
* 数据上报接口
*
* @author shiye
* @create 2020-06-09 9:20
*/
@RestController
@RequestMapping("/appReport")
@Api("数据上报接口")
public class AppReportController extends BaseController {
@Autowired
private AppReportService appReportService;
/**
* 存储一条数据
*
* @param appReportVo
* @return
*/
@PostMapping("/save")
@ApiOperation("存储一条数据")
public AjaxResult save(@RequestBody @Validated AppReportVo appReportVo) {
appReportService.save(appReportVo);
return AjaxResult.success();
}
/**
* 根据条件查询列表
*
* @param appReportVo
* @return
*/
@PostMapping("/queryList")
@ApiOperation("根据条件查询列表")
public AjaxResult queryList(@RequestBody AppReportVo appReportVo) {
List<AppReportVo> list = appReportService.queryList(appReportVo);
return AjaxResult.success(list);
}
}
