以下是一个基于Spring Boot的智慧养老平台的案例代码。这个平台包括老人信息管理、健康监测、紧急呼叫、服务预约等功能。代码结构清晰，适合初学者学习和参考。

1. 项目结构

src/main/java/com/example/smartelderlycare├── controller│   ├── ElderlyController.java│   ├── HealthRecordController.java│   ├── EmergencyAlertController.java│   └── ServiceAppointmentController.java├── model│   ├── Elderly.java│   ├── HealthRecord.java│   ├── EmergencyAlert.java│   └── ServiceAppointment.java├── repository│   ├── ElderlyRepository.java│   ├── HealthRecordRepository.java│   ├── EmergencyAlertRepository.java│   └── ServiceAppointmentRepository.java├── service│   ├── ElderlyService.java│   ├── HealthRecordService.java│   ├── EmergencyAlertService.java│   └── ServiceAppointmentService.java└── SmartElderlyCareApplication.java

2. 依赖配置 (pom.xml)

<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-jpa</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.h2database</groupId><artifactId>h2</artifactId><scope>runtime</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-validation</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency>
</dependencies>

3. 实体类 (model 包)

java_65">Elderly.java

java">package com.example.smartelderlycare.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;@Entity
public class Elderly {@Id@GeneratedValue(strategy = GenerationType.IDENTITY)private Long id;private String name;private int age;private String address;private String contactNumber;// Getters and Setterspublic Long getId() {return id;}public void setId(Long id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}public String getContactNumber() {return contactNumber;}public void setContactNumber(String contactNumber) {this.contactNumber = contactNumber;}
}

java_128">HealthRecord.java

java">package com.example.smartelderlycare.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import java.time.LocalDate;@Entity
public class HealthRecord {@Id@GeneratedValue(strategy = GenerationType.IDENTITY)private Long id;private Long elderlyId;private LocalDate recordDate;private double bloodPressure;private double heartRate;private String notes;// Getters and Setterspublic Long getId() {return id;}public void setId(Long id) {this.id = id;}public Long getElderlyId() {return elderlyId;}public void setElderlyId(Long elderlyId) {this.elderlyId = elderlyId;}public LocalDate getRecordDate() {return recordDate;}public void setRecordDate(LocalDate recordDate) {this.recordDate = recordDate;}public double getBloodPressure() {return bloodPressure;}public void setBloodPressure(double bloodPressure) {this.bloodPressure = bloodPressure;}public double getHeartRate() {return heartRate;}public void setHeartRate(double heartRate) {this.heartRate = heartRate;}public String getNotes() {return notes;}public void setNotes(String notes) {this.notes = notes;}
}

java_201">EmergencyAlert.java

java">package com.example.smartelderlycare.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import java.time.LocalDateTime;@Entity
public class EmergencyAlert {@Id@GeneratedValue(strategy = GenerationType.IDENTITY)private Long id;private Long elderlyId;private LocalDateTime alertTime;private String message;// Getters and Setterspublic Long getId() {return id;}public void setId(Long id) {this.id = id;}public Long getElderlyId() {return elderlyId;}public void setElderlyId(Long elderlyId) {this.elderlyId = elderlyId;}public LocalDateTime getAlertTime() {return alertTime;}public void setAlertTime(LocalDateTime alertTime) {this.alertTime = alertTime;}public String getMessage() {return message;}public void setMessage(String message) {this.message = message;}
}

java_256">ServiceAppointment.java

java">package com.example.smartelderlycare.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import java.time.LocalDateTime;@Entity
public class ServiceAppointment {@Id@GeneratedValue(strategy = GenerationType.IDENTITY)private Long id;private Long elderlyId;private LocalDateTime appointmentTime;private String serviceType;private String notes;// Getters and Setterspublic Long getId() {return id;}public void setId(Long id) {this.id = id;}public Long getElderlyId() {return elderlyId;}public void setElderlyId(Long elderlyId) {this.elderlyId = elderlyId;}public LocalDateTime getAppointmentTime() {return appointmentTime;}public void setAppointmentTime(LocalDateTime appointmentTime) {this.appointmentTime = appointmentTime;}public String getServiceType() {return serviceType;}public void setServiceType(String serviceType) {this.serviceType = serviceType;}public String getNotes() {return notes;}public void setNotes(String notes) {this.notes = notes;}
}

4. 仓库接口 (repository 包)

java_322">ElderlyRepository.java

java">package com.example.smartelderlycare.repository;import com.example.smartelderlycare.model.Elderly;
import org.springframework.data.jpa.repository.JpaRepository;public interface ElderlyRepository extends JpaRepository<Elderly, Long> {
}

java_334">HealthRecordRepository.java

java">package com.example.smartelderlycare.repository;import com.example.smartelderlycare.model.HealthRecord;
import org.springframework.data.jpa.repository.JpaRepository;public interface HealthRecordRepository extends JpaRepository<HealthRecord, Long> {
}

java_346">EmergencyAlertRepository.java

java">package com.example.smartelderlycare.repository;import com.example.smartelderlycare.model.EmergencyAlert;
import org.springframework.data.jpa.repository.JpaRepository;public interface EmergencyAlertRepository extends JpaRepository<EmergencyAlert, Long> {
}

java_358">ServiceAppointmentRepository.java

java">package com.example.smartelderlycare.repository;import com.example.smartelderlycare.model.ServiceAppointment;
import org.springframework.data.jpa.repository.JpaRepository;public interface ServiceAppointmentRepository extends JpaRepository<ServiceAppointment, Long> {
}

5. 服务层 (service 包)

java_372">ElderlyService.java

java">package com.example.smartelderlycare.service;import com.example.smartelderlycare.model.Elderly;
import com.example.smartelderlycare.repository.ElderlyRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;@Service
public class ElderlyService {@Autowiredprivate ElderlyRepository elderlyRepository;public List<Elderly> getAllElderly() {return elderlyRepository.findAll();}public Elderly getElderlyById(Long id) {return elderlyRepository.findById(id).orElse(null);}public Elderly saveElderly(Elderly elderly) {return elderlyRepository.save(elderly);}public void deleteElderly(Long id) {elderlyRepository.deleteById(id);}
}

java_407">HealthRecordService.java

java">package com.example.smartelderlycare.service;import com.example.smartelderlycare.model.HealthRecord;
import com.example.smartelderlycare.repository.HealthRecordRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;@Service
public class HealthRecordService {@Autowiredprivate HealthRecordRepository healthRecordRepository;public List<HealthRecord> getAllHealthRecords() {return healthRecordRepository.findAll();}public HealthRecord getHealthRecordById(Long id) {return healthRecordRepository.findById(id).orElse(null);}public HealthRecord saveHealthRecord(HealthRecord healthRecord) {return healthRecordRepository.save(healthRecord);}public void deleteHealthRecord(Long id) {healthRecordRepository.deleteById(id);}
}

java_442">EmergencyAlertService.java

java">package com.example.smartelderlycare.service;import com.example.smartelderlycare.model.EmergencyAlert;
import com.example.smartelderlycare.repository.EmergencyAlertRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;@Service
public class EmergencyAlertService {@Autowiredprivate EmergencyAlertRepository emergencyAlertRepository;public List<EmergencyAlert> getAllEmergencyAlerts() {return emergencyAlertRepository.findAll();}public EmergencyAlert getEmergencyAlertById(Long id) {return emergencyAlertRepository.findById(id).orElse(null);}public EmergencyAlert saveEmergencyAlert(EmergencyAlert emergencyAlert) {return emergencyAlertRepository.save(emergencyAlert);}public void deleteEmergencyAlert(Long id) {emergencyAlertRepository.deleteById(id);}
}

java_477">ServiceAppointmentService.java

java">package com.example.smartelderlycare.service;import com.example.smartelderlycare.model.ServiceAppointment;
import com.example.smartelderlycare.repository.ServiceAppointmentRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;@Service
public class ServiceAppointmentService {@Autowiredprivate ServiceAppointmentRepository serviceAppointmentRepository;public List<ServiceAppointment> getAllServiceAppointments() {return serviceAppointmentRepository.findAll();}public ServiceAppointment getServiceAppointmentById(Long id) {return serviceAppointmentRepository.findById(id).orElse(null);}public ServiceAppointment saveServiceAppointment(ServiceAppointment serviceAppointment) {return serviceAppointmentRepository.save(serviceAppointment);}public void deleteServiceAppointment(Long id) {serviceAppointmentRepository.deleteById(id);}
}

6. 控制器层 (controller 包)

java_514">ElderlyController.java

java">package com.example.smartelderlycare.controller;import com.example.smartelderlycare.model.Elderly;
import com.example.smartelderlycare.service.ElderlyService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;@RestController
@RequestMapping("/elderly")
public class ElderlyController {@Autowiredprivate ElderlyService elderlyService;@GetMappingpublic List<Elderly> getAllElderly() {return elderlyService.getAllElderly();}@GetMapping("/{id}")public Elderly getElderlyById(@PathVariable Long id) {return elderlyService.getElderlyById(id);}@PostMappingpublic Elderly createElderly(@RequestBody Elderly elderly) {return elderlyService.saveElderly(elderly);}@PutMapping("/{id}")public Elderly updateElderly(@PathVariable Long id, @RequestBody Elderly elderly) {elderly.setId(id);return elderlyService.saveElderly(elderly);}@DeleteMapping("/{id}")public void deleteElderly(@PathVariable Long id) {elderlyService.deleteElderly(id);}
}

java_560">HealthRecordController.java

java">package com.example.smartelderlycare.controller;import com.example.smartelderlycare.model.HealthRecord;
import com.example.smartelderlycare.service.HealthRecordService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;@RestController
@RequestMapping("/health-records")
public class HealthRecordController {@Autowiredprivate HealthRecordService healthRecordService;@GetMappingpublic List<HealthRecord> getAllHealthRecords() {return healthRecordService.getAllHealthRecords();}@GetMapping("/{id}")public HealthRecord getHealthRecordById(@PathVariable Long id) {return healthRecordService.getHealthRecordById(id);}@PostMappingpublic HealthRecord createHealthRecord(@RequestBody HealthRecord healthRecord) {return healthRecordService.saveHealthRecord(healthRecord);}@PutMapping("/{id}")public HealthRecord updateHealthRecord(@PathVariable Long id, @RequestBody HealthRecord healthRecord) {healthRecord.setId(id);return healthRecordService.saveHealthRecord(healthRecord);}@DeleteMapping("/{id}")public void deleteHealthRecord(@PathVariable Long id) {healthRecordService.deleteHealthRecord(id);}
}

java_606">EmergencyAlertController.java

java">package com.example.smartelderlycare.controller;import com.example.smartelderlycare.model.EmergencyAlert;
import com.example.smartelderlycare.service.EmergencyAlertService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;@RestController
@RequestMapping("/emergency-alerts")
public class EmergencyAlertController {@Autowiredprivate EmergencyAlertService emergencyAlertService;@GetMappingpublic List<EmergencyAlert> getAllEmergencyAlerts() {return emergencyAlertService.getAllEmergencyAlerts();}@GetMapping("/{id}")public EmergencyAlert getEmergencyAlertById(@PathVariable Long id) {return emergencyAlertService.getEmergencyAlertById(id);}@PostMappingpublic EmergencyAlert createEmergencyAlert(@RequestBody EmergencyAlert emergencyAlert) {return emergencyAlertService.saveEmergencyAlert(emergencyAlert);}@PutMapping("/{id}")public EmergencyAlert updateEmergencyAlert(@PathVariable Long id, @RequestBody EmergencyAlert emergencyAlert) {emergencyAlert.setId(id);return emergencyAlertService.saveEmergencyAlert(emergencyAlert);}@DeleteMapping("/{id}")public void deleteEmergencyAlert(@PathVariable Long id) {emergencyAlertService.deleteEmergencyAlert(id);}
}

java_652">ServiceAppointmentController.java

java">package com.example.smartelderlycare.controller;import com.example.smartelderlycare.model.ServiceAppointment;
import com.example.smartelderlycare.service.ServiceAppointmentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;@RestController
@RequestMapping("/service-appointments")
public class ServiceAppointmentController {@Autowiredprivate ServiceAppointmentService serviceAppointmentService;@GetMappingpublic List<ServiceAppointment> getAllServiceAppointments() {return serviceAppointmentService.getAllServiceAppointments();}@GetMapping("/{id}")public ServiceAppointment getServiceAppointmentById(@PathVariable Long id) {return serviceAppointmentService.getServiceAppointmentById(id);}@PostMappingpublic ServiceAppointment createServiceAppointment(@RequestBody ServiceAppointment serviceAppointment) {return serviceAppointmentService.saveServiceAppointment(serviceAppointment);}@PutMapping("/{id}")public ServiceAppointment updateServiceAppointment(@PathVariable Long id, @RequestBody ServiceAppointment serviceAppointment) {serviceAppointment.setId(id);return serviceAppointmentService.saveServiceAppointment(serviceAppointment);}@DeleteMapping("/{id}")public void deleteServiceAppointment(@PathVariable Long id) {serviceAppointmentService.deleteServiceAppointment(id);}
}

java_698">7. 主应用类 (SmartElderlyCareApplication.java)

java">package com.example.smartelderlycare;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
public class SmartElderlyCareApplication {public static void main(String[] args) {SpringApplication.run(SmartElderlyCareApplication.class, args);}
}

8. 配置文件 (application.properties)

spring.datasource.url=jdbc:h2:mem:elderlycare
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=password
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.h2.console.enabled=true

9. 运行项目

1. 使用 mvn spring-boot:run 命令运行项目。
2. 访问 http://localhost:8080/h2-console 查看H2数据库。
3. 使用API工具（如Postman）测试各个接口。

10. 扩展功能

• 添加用户登录和权限管理（使用Spring Security）。
• 添加健康数据分析功能，根据健康记录生成报告。