SpringBoot
编码 配置 部署 监控 -> 简单
SpringBoot和SpringMVC的关系
SpringMVC->SpringBoot
SpringBoot的特点
1.化简为简，简化配置
2.备受关注，是下一代框架
微服务->SpringCloud->SpringBoot
前置知识
利用maven构建项目 ->《项目管理利器》
Spring注解。 -> 《Spring入门篇》
RESTful API
课程学到
第一个SpringBoot程序
自定义属性配置
Controller的使用
spring-data-jpa
事务管理
第一个SpringBoot应用
New Project -> Spring Initializr -> next -> Artifact:girl Group:com.binperson -> next -> Web web
nexus-aliyun
*
Nexus aliyun
http://maven.aliyun.com/nexus/content/goups/public
启动
方法一
GirlApplication run
http://localhost:8080/hello
package com.binperson;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
/**
* Created by binperson on 2017/5/14.
*/
@RestController
public class HelloController {
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public String say() {
return "hello Spring Boot!";
}
}
方法二
cd gril
mvn spring-boot:run
方法三
mvn install
cd target
ll
java -jar girl-0.0.1-SNAPSHOT.jar
属性配置
spring.datasource.url:jdbc:mysql://127.0.0.1:3306/
spring.datasoucce.username:root
spring.datasource.password:
spring.datasource.driver-class-name: com.mysql.jdbc
delete static templates
resources -> application.properties
server.port=8081
server.content-path=/girl
application.yml
server:
port: 8081
context-path: /girl
http://localhost:8081/girl/hello
server:
port: 8080
cupSize: A
age: 18
content: "supSize: ${cupSize}, age: ${age}"
package com.binperson;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
/**
* Created by binperson on 2017/5/14.
*/
@RestController
public class HelloController {
@Value("${cupSize}")
private String cupSize;
@Value("${age}")
private Integer age;
@Value("${content}")
private String content;
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public String say() {
return cupSize + age + content;
}
}
server:
port: 8080
girl:
cupSize: B
age: 18
新建一个类GirlProperties
package com.binperson;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
/**
* Created by binperson on 2017/5/14.
*/
@Component
@ConfigurationProperties(prefix = "girl")
public class GirlProperties {
private String cupSize;
private Integer age;
public String getCupSize() {
return cupSize;
}
public void setCupSize(String cupSize) {
this.cupSize = cupSize;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
/**
* Created by binperson on 2017/5/14.
*/
@RestController
public class HelloController {
@Autowired
private GirlProperties girlProperties;
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public String say() {
return girlProperties.getCupSize();
}
}
application-dev.yml
server:
port: 8080
girl:
cupSize: B
age: 18
application-prod.yml
server:
port: 8080
girl:
cupSize: F
age: 18
application.yml
spring:
profiles:
active: dev
Controller的使用
@Controller 处理http请求
@RestController Spring4之后新加的注解，原来返回json需要@ResponseBody配合@Controller
@RequestMapping 配置url映射
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
* Created by binperson on 2017/5/14.
*/
@Controller
public class HelloController {
@Autowired
private GirlProperties girlProperties;
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public String say() {
return girlProperties.getCupSize();
}
}
resources -> templates -> index.html
Title
hello sb
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
* Created by binperson on 2017/5/14.
*/
@Controller
public class HelloController {
@Autowired
private GirlProperties girlProperties;
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public String say() {
return "index";
}
}
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
/**
* Created by binperson on 2017/5/14.
*/
@RequestMapping("/bin")
@RestController
public class HelloController {
@Autowired
private GirlProperties girlProperties;
@RequestMapping(value = {"/hello", "/hi"}, method = RequestMethod.POST)
public String say() {
return girlProperties.getCupSize();
}
}
@PathVariable 获取url中的数据
@RequestParam 获取请求参数的值
@GetMapping 组合注解
http://localhost:8080/bin/say/13
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
/**
* Created by binperson on 2017/5/14.
*/
@RequestMapping("/bin")
@RestController
public class HelloController {
@Autowired
private GirlProperties girlProperties;
@RequestMapping(value = {"/say/{id}"}, method = RequestMethod.GET)
public String say(@PathVariable("id") Integer id) {
return "id:" + id;
//return girlProperties.getCupSize();
}
}
http://localhost:8080/bin/say/11?id=111
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
/**
* Created by binperson on 2017/5/14.
*/
@RequestMapping("/bin")
@RestController
public class HelloController {
@Autowired
private GirlProperties girlProperties;
@RequestMapping(value = {"/say/{id}"}, method = RequestMethod.GET)
public String say(@RequestParam("id") Integer myid) {
return "id:" + myid;
//return girlProperties.getCupSize();
}
}
http://localhost:8080/bin/say/11?id=
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
/**
* Created by binperson on 2017/5/14.
*/
@RequestMapping("/bin")
@RestController
public class HelloController {
@Autowired
private GirlProperties girlProperties;
@RequestMapping(value = {"/say/{id}"}, method = RequestMethod.GET)
public String say(@RequestParam(value = "id", required = false, defaultValue = "0") Integer myid) {
return "id:" + myid;
//return girlProperties.getCupSize();
}
}
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
/**
* Created by binperson on 2017/5/14.
*/
@RequestMapping("/bin")
@RestController
public class HelloController {
@Autowired
private GirlProperties girlProperties;
//@RequestMapping(value = {"/say/{id}"}, method = RequestMethod.GET)
@GetMapping(value = "/say")
public String say(@RequestParam(value = "id", required = false, defaultValue = "0") Integer myid) {
return "id:" + myid;
//return girlProperties.getCupSize();
}
}
数据库操作
Spring-Data-Jpa
JPA(Java Persistence API)定义了一系列对象持久化的标准，目前实现这一规划的产品有Hibernate、TopLink等。
RESTful API设计
请求类型 请求路径 功能
GET /girls 获取女生列表
POST /girls 创建一个女生
GET ／girl/id 通过id查询一个女生
PUT ／girl/id 通过id更新一个女生
DELETE /girls/id 通过id删除一个女生
org.springframework.boot
spring-boot-starter-data-jpa
mysql
mysql-connector-java
application.yml
spring:
profiles:
active: dev
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/dbgirl
username: root
password:
jpa:
hibernate:
ddl-auto: create
show-sql: true
package com.binperson;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
/**
* Created by binperson on 2017/5/14.
*/
@Entity
public class Girl {
@Id
@GeneratedValue
private Integer id;
private String cupSize;
private Integer age;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getCupSize() {
return cupSize;
}
public void setCupSize(String cupSize) {
this.cupSize = cupSize;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Girl() {
}
}
ddl-auto: update
数据库
package com.binperson;
import org.springframework.data.jpa.repository.JpaRepository;
import java.util.List;
/**
* Created by binperson on 2017/5/16.
*/
public interface GirlRepository extends JpaRepository {
//通过年龄查询
public List findByAge(Integer age);
}
事务管理
查询的时候不需要事务
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
/**
* Created by binperson on 2017/5/16.
*/
@Service
public class GirlService {
@Autowired
private GirlRepository girlRepository;
@Transactional
public void insertTwo() {
Girl girlA = new Girl();
girlA.setCupSize("A");
girlA.setAge(18);
girlRepository.save(girlA);
Girl girlB = new Girl();
girlB.setCupSize("A");
girlB.setAge(19);
girlRepository.save(girlB);
}
}
package com.binperson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
/**
* Created by binperson on 2017/5/16.
*/
@RestController
public class GirlController {
@Autowired
private GirlRepository girlRepository;
@Autowired
GirlService girlService;
@GetMapping(value = "/girls")
public List girlList() {
return girlRepository.findAll();
}
@PostMapping(value = "girls")
public Girl girlAdd(@RequestParam("cupSize") String cupSize,
@RequestParam("age") Integer age) {
Girl girl = new Girl();
girl.setCupSize(cupSize);
girl.setAge(age);
return girlRepository.save(girl);
}
@GetMapping(value = "/girls/{id}")
public Girl girlFindOne(@RequestParam("id") Integer id) {
return girlRepository.findOne(id);
}
@PutMapping(value = "/girls/{id}")
public Girl girlUpdate(@RequestParam("id") Integer id,
@RequestParam("age") Integer age,
@RequestParam("cupSize") String cupSize){
Girl girl = new Girl();
girl.setId(id);
girl.setCupSize(cupSize);
girl.setAge(age);
return girlRepository.save(girl);
}
@DeleteMapping(value = "/girls/{id}")
public void girlDelete(@RequestParam("id") Integer id){
girlRepository.delete(id);
}
@GetMapping(value = "/girls/age/{age}")
public List girlListByAge(@PathVariable("age") Integer age){
return girlRepository.findByAge(age);
}
@PostMapping(value = "/girls/two")
public void girlTwo() {
girlService.insertTwo();
}
}