微服务+mybaits-plus+layui分页对数据库进行增删改查
新建pom项目，引入依赖
org.springframework.boot
spring-boot-starter-parent
1.5.10.RELEASE
org.springframework.cloud
spring-cloud-dependencies
Edgware.SR2
pom
import
新建子模块SPRINGCLOUD_EUREKASERVER：注册中心
main方法：启动注册中心
@SpringBootApplication
@EnableEurekaServer
public class EurekaServerMain {
public static void main(String[] args) {
new SpringApplicationBuilder(EurekaServerMain.class).web(true).run(args);
}
}
引入依赖
org.springframework.cloud
spring-cloud-starter-eureka-server
/**
将注册中心打包到Linux系统上所需要的插件
**/
org.springframework.boot
spring-boot-maven-plugin
注册中心resources配置文件：application.yml
eureka:
instance:
preferIpAddress: true #将来注册到注册中心的微服务包括注册中心都是使用IP地址
hostname: localhost
client:
registerWithEureka: false #是否注册到注册中心 注册中心自己不用注册
fetchRegistry: false #是否抓取注册中心的注册信息
serviceUrl:
defaultZone: http://localhost:8761/eureka/ #微服务和客户端用来注册和发现的地址
server:
port: 8761
新建子模块SPRINGCLOUD_USERSERVICE：服务端
实体类
package cn.ps.entity;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
public class User{
@TableId(type=IdType.AUTO)
private int id;
@TableField("username")
private String userName;
@TableField("usersex")
private String userSex;
@TableField("userage")
private String userAge;
@TableField("userphone")
private String userPhone;
@TableField("usermoney")
private String userMoney;
@TableField("useremail")
private String userEmail;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserSex() {
return userSex;
}
public void setUserSex(String userSex) {
this.userSex = userSex;
}
public String getUserAge() {
return userAge;
}
public void setUserAge(String userAge) {
this.userAge = userAge;
}
public String getUserPhone() {
return userPhone;
}
public void setUserPhone(String userPhone) {
this.userPhone = userPhone;
}
public String getUserMoney() {
return userMoney;
}
public void setUserMoney(String userMoney) {
this.userMoney = userMoney;
}
public String getUserEmail() {
return userEmail;
}
public void setUserEmail(String userEmail) {
this.userEmail = userEmail;
}
}
public class Result {
private int code;
private String msg;
private int count;
private List data;
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public int getCount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
public List getData() {
return data;
}
public void setData(List data) {
this.data = data;
}
接口映射类
@Mapper
public interface UserMapper extends BaseMapper{
}
service层
@RestController
public class UserServiceImpl{
@Autowired
private UserMapper userMapper;
@GetMapping("/users")
public Result queryUser(String userName,String userMoney,String curPage, String numPage) {
//第一次访问没有当前页
if(StringUtils.isEmpty(curPage)) {
curPage="1";
}
if(StringUtils.isEmpty(numPage)) {
numPage="10";
}
QueryWrapper qw=new QueryWrapper();
if(StringUtils.isNotEmpty(userName)) {
qw.like("username", userName);
}
if(StringUtils.isNotEmpty(userMoney)) {
qw.eq("usermoney", userMoney);
}
//转换成int类型
int cur=Integer.parseInt(curPage);
int num=Integer.parseInt(numPage);
IPage pageData=userMapper.selectPage(new Page(cur,num), qw);
Result result=new Result();
result.setCode(0);
result.setCount((int)pageData.getTotal());
result.setData(pageData.getRecords());
return result;
}
@PostMapping("/user")
public void addUser(@RequestBody User user) {
userMapper.insert(user);
}
@DeleteMapping("/user/{id}")
public void deleteUser(@PathVariable("id") int id) {
userMapper.deleteById(id);
}
@PutMapping("/user/{id}")
public void updateUser(@RequestBody User user) {
userMapper.updateById(user);
}
mybaits-plus分页插件
@EnableTransactionManagement
@Configuration
@MapperScan("com.baomidou.cloud.service.*.mapper*")
public class MybaitsPlusConfgin {
/**
* 分页插件
*/
@Bean
public PaginationInterceptor paginationInterceptor() {
return new PaginationInterceptor();
}
}
main方法：启动服务端微服务
@SpringBootApplication
@EnableEurekaClient
@RestController
public class UserServerMain {
public static void main(String [] args){
new SpringApplicationBuilder(UserServerMain.class).web(true).run(args);
}
}
服务端resources配置文件：application.yml
eureka:
instance:
preferIpAddress: true #将来注册到注册中心的微服务包括注册中心都是用ip地址
hostname: localhost
client:
registerWithEureka: true #是否注册到注册中心 注册中心自己不需要注册
fetchRegistry: false #是否抓取注册中的注册信息
serviceUrl:
defaultZone: http://192.168.88.131:8761/eureka/ #微服务和客户端用来注册和发现的地址
spring:
application:
name: userservice
datasource:
url: jdbc:mysql://localhost/my_mysql
password: 789456123
driver-class-name: com.mysql.jdbc.Driver
username: tan_tan
server:
port: 8880
引入依赖：服务端微服务
org.springframework.boot
spring-boot-starter-web
org.springframework.cloud
spring-cloud-starter-eureka
mysql
mysql-connector-java
org.springframework.boot
spring-boot-starter-data-jpa
com.baomidou
mybatis-plus-boot-starter
3.0.6
commons-lang
commons-lang
2.2
com.alibaba
druid-spring-boot-starter
1.1.10
新建子模块SPRINGCLOUD_HTML：客户端
控制层
@RestController
public class UserController {
@Autowired
private UserFeign userFeign;
@GetMapping(value = "/users")
public Result queryUser(String userName,String userMoney,String page,String limit){
try {
Result pb=userFeign.queryUser(userName,userMoney, page, limit);
return pb;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@PostMapping(value = "/user")
public Result addUser(User user){
Result result=new Result();
try {
userFeign.addUser(user);
}catch (Exception e){
result.setCode(1);
result.setMsg("新增出错"+e.getMessage());
}
return result;
}
@DeleteMapping(value = "/user/{id}")
public Result deleteUser(@PathVariable int id){
Result result=new Result();
try {
userFeign.deleteUser(id);
}catch (Exception e){
result.setCode(1);
result.setMsg("删除失败"+e.getMessage());
}
return result;
}
@PutMapping(value = "/user/{id}")
public Result updateUser(@PathVariable("id") int id,User user){
Result result=new Result();
user.setId(id);
try {
userFeign.updateUser(id,user);
}catch (Exception e){
result.setCode(1);
result.setMsg("修改失败"+e.getMessage());
}
return result;
}
实体类
public class User{
@TableId(type=IdType.AUTO)
private int id;
@TableField("username")
private String userName;
@TableField("usersex")
private String userSex;
@TableField("userage")
private String userAge;
@TableField("userphone")
private String userPhone;
@TableField("usermoney")
private String userMoney;
@TableField("useremail")
private String userEmail;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserSex() {
return userSex;
}
public void setUserSex(String userSex) {
this.userSex = userSex;
}
public String getUserAge() {
return userAge;
}
public void setUserAge(String userAge) {
this.userAge = userAge;
}
public String getUserPhone() {
return userPhone;
}
public void setUserPhone(String userPhone) {
this.userPhone = userPhone;
}
public String getUserMoney() {
return userMoney;
}
public void setUserMoney(String userMoney) {
this.userMoney = userMoney;
}
public String getUserEmail() {
return userEmail;
}
public void setUserEmail(String userEmail) {
this.userEmail = userEmail;
}
}
public class Result {
private int code;
private String msg;
private int count;
private List data;
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public int getCount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
public List getData() {
return data;
}
public void setData(List data) {
this.data = data;
}
}
新建接口：UserFeign
@FeignClient(name="USERSERVICE")
public interface UserFeign {
@GetMapping("/users")
public Result queryUser(@RequestParam("userName") String userName,@RequestParam("userMoney")String userMoney,@RequestParam("curPage") String curPage,@RequestParam("numPage") String numPage);
@PostMapping("/user")
public Result addUser(@RequestBody User user);
@DeleteMapping("/user/{id}")
public Result deleteUser(@PathVariable("id") int id);
@PutMapping("/user/{id}")
public Result updateUser(@PathVariable("id") int id,@RequestBody User user);
}
main方法：启动客户端微服务
@SpringBootApplication(exclude=DataSourceAutoConfiguration.class)
@EnableEurekaClient
@EnableFeignClients
public class UserUiMain {
public static void main(String [] args){
new SpringApplicationBuilder(UserUiMain.class).web(true).run(args);
}
}
客户端resources配置文件：application.yml
eureka:
instance:
preferIpAddress: true
hostname: localhost
client:
registerWithEureka: true
fetchRegistry: true
serviceUrl:
defaultZone: http://192.168.88.131:8761/eureka/
spring:
application:
name: userui
server:
port: 80
引入依赖：客户端微服务
org.springframework.cloud
spring-cloud-starter-eureka
org.springframework.cloud
spring-cloud-starter-openfeign
com.baomidou
mybatis-plus-boot-starter
3.0.6
客户端微服务中 webapp下新建resource，引入layui
客户端微服务中 webapp下引入jquery
客户端微服务中 webapp下编写html页面
HTML
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