网关gateway模块
①、配置文件，添加各个服务模块的路由路径
gateway:routes:-id: server-cart #微服务名称uri: lb://service-cart #负责均衡predicates:- Path=/api/order/cart/**
ThreadLocal
①、定义一个工具类
public class AuthContextUtil{private static final ThreadLocal<SysUser> threadLocal = new ThreadLocal<>();//存储数据public static void set(SysUser sysUser){threadLocal.set(sysUser);}//获取数据public static SysUser get(){return threadLocal.get();} //删除数据public static void remove(){threadLocal.remove();}
}
②、业务方法中使用
@GetMapping(value="/getUserInfo")
public Result getUserInfo(){return Result.build(AuthConextUtil.get(),ResultCodeEnum.SUCCESS); //从ThreadLocal中获取用户信息
}
远程调用
购物车服务模块——>商品服务模块中的数据
①、service-client模块将调用接口单独剥离出来作为调用接口端
添加依赖：spring-cloud-starter-openfeign spring-cloud-loadbalancer
创建远程调用接口
@FeignClient(value="service-product") //value的值和service-product模块中配置文件服务名称一致
public interface ProductFeignClient{@GetMapping("/api/product/getBySkuId/{skuId}")public ProductSku getBySkuId(@PathVariable("skuId") Long skuId);
}
②、service-cart模块中引入service-client模块坐标
启动类上添加注解
@EnableFeignClients(basePackages = {"com.michael.spzx"})
@EnableUserLoginAuthInterceptor //该注解是针对ThreadLocal存入的用户信息
@Autowired
private ProductFeignClient productFeignClient;//将接口进行注入//方法中，调用即可
③、service-product模块服务提供
service/mapper省略
@GetMapping("/getbySkuId/{skuId}")
public ProductSku getBySkuId(@PathVariable Long skuId){ProductSku productSku = productService.getBySkuId(skuId);return productSku;
}
读取配置文件
①、配置文件
配置文件的相互导入
application-alipay.yml
spzx:applipay: #值省略allipay_url: app_id: app_private_key: return_payment_url:notify_payment_url:
application-dev.yml中进行引入
spring:config:import: application-alipay.yml
②、定义实体类读取配置文件
@Data
@ConfigurationProperties(prefix="apzx.alipay")
public class AlipayProperties{private String alipayUrl; //属性名和配置文件中的保持一致private String appPrivateKey;public String alipayPublicKey;private String appId;public String returnPaymentUrl;public String notifyPaymentUrl;public final static String format="json";public final static String charset="utf-8";public final static String sign_type="RSA2"
}
③、启动类添加注解
@EnableConfigurationProperties(value={AlipayProperties.class})
统一异常
①、创建异常定义
@ControllerAdvice //给Controller增加一个统一操作
public class GlobalExceptionHandler{//全局异常处理@ExceptionHandler(Exception.class)@ResponseBodypublic Result error(){return Result.build(null,ResultCodeEnum,SYSTEM_ERROR);}//引入自定义异常@ExceptionHandler(GuiGuException.class)@ResponseBodypublic Result error(GuiguException e){return Result.build(null,e.getResultCodeEnum());}
}
/**自定义异常
*/
@Data
public class GuiguException extends RuntimeException{private Integer code;private String message;private ResultCodeEnum resultCodeEnum; //枚举类封装的错误状态码和错误信息public GuiguExcetion(ResultCodeEnum resultCodeEnum){this.resultCodeEnum = resultCodeEnum;this.code = resultCodeEnum.getCode;this.message = resultCodeEnum.getMessage();}public GuiguExcetion(Integer code,String message){this.code = code;this.message = message;}
}
②、Service业务类使用
if(sysUser == null){//throw new RuntimeException("用户名或密码错误");//改成自定义异常throw new GuiguException(ResultCodeEnum.LOGIN_ERROR);
}
