ZZY的博客

Mybatis自连接列名重复，需要给每个列名取个别名 SELECT p.*,p.*,p1.id pId,p1.permission_name pname,p1.permission_pid ppid,p1.permission_url purl,p1.permission_description pdescription,p1.permission_priority pprio

Mybatis参数异常org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'roleId' in 'class java.lang.Integer'M...

@Value有两种获取application.properties值得方法： 一、PlaceHolder方式：格式${...}@Componentpublic class GetValue { @Value("${book.name}") private String name; public String getName() { return name

错误：This application has no explicit mapping for /error, so you are seeing this as a fallback.原因：访问的controller没有放到，main类所在包的子包或同一个包下。

项目启动报错：Could not resolve placeholder 'spring.datasource.url' in value "${spring.datasource.url}"项目在配置更改后要对maven进行clean，install的操作，清除以重新编译项目...

在此我们通过过滤器来完成本功能@WebFilter(filterName = "RequestBodyFilter", urlPatterns = "/**")public class RequestBodyFilter implements Filter { public static final String LOGTHREAD_ID="logthreadId"; priva...

SimpleDateFormat是线程不安全的，这里给出一个解决方案：package com.bailian.middleware.util;import java.text.SimpleDateFormat;public class DateUtils { private static final ThreadLocal <SimpleDateFormat> thr...

       @PostContruct是spring框架的注解，在方法上加该注解会在项目启动的时候执行该方法，也可以理解为在spring容器初始化的时候执行该方法。        @Componentpublic class HttpUtilsV2 { private static final Logger LOGGER = LoggerFactory.getLogger(Htt...