bake1877-CSDN博客

转载 map

map中常用的方法put（k，v）；添加值package com.example.demo.controller;import java.util.HashMap;import java.util.Map;public class MapTesy { public static void main(String[] args) { ...

2019-09-26 16:08:00 90

转载 mapper编译一直报错

.SqlSessionFactory]: Factory method 'sqlSessionFactoryBean' threw exception; nested exception is java.lang.NumberFormatException: null就是sql 入参需要一个数字，结果你给了一个字母，请求指点转载于:https://www.cnblogs.com/...

2019-09-26 10:37:00 200

转载 springboot项目启动报错

　　报错内容BeanCreationException，NumberFormatException，UnsatisfiedDependencyException，NumberFormatException先看看我的项目目录大家可以看到我的项目没有application.yml，而springboot项目默认寻找application.yml或者appl...

2019-09-09 10:04:00 127

转载 mysql sql函数总结笔记

DATE_FORMAT截取时间字符串例子：SELECT DATE_FORMAT(c.loan_time,'%Y-%m-%d') loan_time FROM customer c;truncate函数用于截取小数点后的位数分别截取字符串后的012位。当不足两位时不会补零例子：SELECT TRUNCATE(r.pay_total_interest...

2019-09-05 17:42:00 99

转载 AKKA学习笔记

AKKA是一款高性能，高容错性的分布式&并行应用的框架Groovy1.线程之间怎么通讯？conmu by共享内存--------》锁actor模型负载均衡的actor controller 通过消息通讯ThreadA{　　ThreadA1{　　};　　ThreadA2{　　　　THROW nullexception;　　};...

2019-08-05 23:48:00 104

转载 mabatis配置文件yml配置打印sql

在yml添加logging: level: com: cfam: mapper: debug//包路径为mapper文件包路径转载于:https://www.cnblogs.com/xining/p/11289952.html

2019-08-02 17:18:00 458

转载 java使用validator检验bean

一介绍，首先大家常用的hibernate-validator，它是对JSR-303/JSR-349标准的实现，然后spring为了给开发者提供便捷集成了hibernate-validator，默认在springMVC模块下。二依赖首先加上web模块<dependency> <groupId>org.springfr...

2019-08-01 15:19:00 122

转载 vue项目老是报错气的我就不行

项目报错构建失败Module build failed: Error: ENOENT: no such file or directory, scandir 'D:\text\reportui\node_modules\node-sass\vendor'解决方案运行npm i node-sass --sass_binary_site=https://npm.taob...

2019-07-30 18:32:00 227

转载注入为空

在controller中注入调用另一个controller注入失败Acontroller中调用另一个BController中的run()aControllerBControllre bControllr = new BController();在Acontroller中调用b方法bController.run();在BController中会会出现...

2019-07-24 09:47:00 75

转载 vue项目报错

报错内容Module build failed: Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (64)For more information on which environments are supported ple...

2019-07-23 10:25:00 152

转载 exacle文件上传

@RequestMapping(value = "/upload/uploadFileBankExcel", method = RequestMethod.POST) public String uploadExcel(@RequestParam("file") MultipartFile file, HttpServletRequest request, HttpServ...

2019-07-16 20:18:00 248

转载 JSONObject 转List 强制类型转换错误

JSONArray arr=(JSONArray)map.getOrDefault("data","");List<DHD> data=JSONObject.parseArray(arr.toJSONString(),DHD.class);转载于:https://www.cnblogs.com/xining/p/10766792.html

2019-04-25 10:27:00 1108

转载 CSS属性

2019-03-29 11:06:00 75