qingwenc的博客

1;systemctl daemon-reload 重新加载2:systemctl enable keepalived.service 设置开机自动启动3:systemctl disable keepalived.service 取消开机自动启动4:systemctl start keepalived.service 启动5:systemctl stop keepalived.service停止

项目启动出错，相关工作流的表会创建不完整Error:Using a TIMESTAMP data type with a fractional precision of 6 is not supported on mariadb: A timestamp datatype with 6 fractional digits was requested, but MySQL only supports 0 digits.因为MySQL版本不支持Timestamp(n)的写法，需更新MySQL版本。在MyS

1.在sbin目录下创建可执行文件cut_my_log.sh,内容如下：以分钟创建日志#!/bin/bashLOG_PATH="/usr/local/nginx/logs"RECORD_TIME=$(date -d "yesterday" +%Y-%m-%d+%H:%M)PID=${LOG_PATH}/nginx.pidmv ${LOG_PATH}/access.log ${LOG_PATH}/access.${RECORD_TIME}.logmv ${LOG_PATH}/error.log

1.在方法参数中对实体进行声明@Valid和BindingResult result2.通过解析BindingResult 并封装到map中，然后返回输出3.实体的数据校验 @NotBlank(message = "用户昵称不能为空") @Length(max = 12, message = "用户昵称不能超过12位") @ApiModelProperty(value="用户昵称", name="nickname", example="杰森", required = false)

1.controller代码 @ApiOperation(value = "用户头像修改", notes = "用户头像修改", httpMethod = "POST") @PostMapping("uploadFace") public IMOOCJSONResult uploadFace( @ApiParam(name = "userId", value = "用户id", required = true) @RequestParam S

1.修改配置文件 generatorConfig.xml<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

创建/** * @Desc: 性别 枚举 */public enum Sex { woman(0, "女"), man(1, "男"), secret(2, "保密"); public final Integer type; public final String value; Sex(Integer type, String value) { this.type = type; this.value = value

BeanUtils.copyProperties(addressBO,pendingAddress);

1.提交订单后，对应生成服务端三个表的数据，订单表order，订单商品表，订单状态表order_items规格表items_spec要扣除库存2.调用商户后台系统，创建订单3.商户后台系统调用（统一下单api）微信支付系统生成二维码4.用户支付后，微信异步通知商户系统支付结果，商户系统告知微信接收情况（不告知接收情况，微信会连续发送支付结果）4.商户系统修改订单状态，并调用远程接口通知服务器后台，修改订单状态支付流程图在这里插入图片描述...

1.设置配置类@Configurationpublic class WebMvcConfig implements WebMvcConfigurer { @Bean public RestTemplate restTemplate(RestTemplateBuilder builder) { return builder.build(); }}2.Controller调用@Autowired private RestTemplate restTempl

1.类中的定义@Component@ConfigurationProperties(prefix="wxpay")@PropertySource("classpath:wxpay.properties")public class WXPayResource { private String qrcodeKey; private long qrcodeExpire; public String getQrcodeKey() { return qrcodeKey; } public

<select id="queryItemComments" parameterType="Map" resultType="com.imooc.pojo.vo.ItemCommentVO"> SELECT ic.comment_level as commentLevel, ic.content as content, ic.sepc_name as specName, ic.created_time as createdT

1.先判断cookie中是否有购物车，没有就把对象存到数组中，再存到cookie中，2.如果cookie中有购物车，就通过规格Id判断cookie中的对象数组是否存在此规格Id的对象，存在就购买数量加一，不存在就把当前规格Id的对象插入到cookie对象数组中相关前端代码// 由于cookie大小限制为4k，另外课程第一阶段是没有redis的，所以相关暂存性内容会存入到cookie中 var shopcartCounts = app.getShopcartItemCounts();

1.添加依赖把spring-boot-starter-logging的依赖排除掉，只使用slf4j-log4j12 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> <exclusions> <exclusion> <gro

1.添加配置类：package com.imooc.config;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.web.cors.CorsConfiguration;import org.springframework.web.cors.UrlBasedCorsConf

1.添加依赖：<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId></dependency>2.添加配置类：import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.annota

Swagger2的使用1.添加依赖<!-- swagger2 配置 --> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.4.0</version> </dependency> <dependency>

Git的使用–如何将本地项目上传到Github