<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[ccpshare的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/ccpshare</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; ccpshare]]></copyright><item><title><![CDATA[Mysql中case函数的使用]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/124922315</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/124922315</guid><author>ccpshare</author><pubDate>Mon, 23 May 2022 11:04:01 +0800</pubDate><description><![CDATA[case执行方式：逐一判断每个 WHEN 子句直到返回真值为止。此外，没有能够返回真值的WHEN 子句时，也会返回 ELSE 子句指定的表达式。
用法一:在返回映射时使用（固定字段展示内容）
1）结构
select
    case '数据库字段'
        when '条件1' then '满足条件的结果1'
        when '条件2' then '满足条件的结果2'
        ...
        else '所有条件之外的结果n'
    end as '字段名称'
from ]]></description><category></category></item><item><title><![CDATA[使用restTemplate发送post请求和get请求]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/124350465</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/124350465</guid><author>ccpshare</author><pubDate>Sun, 24 Apr 2022 09:55:27 +0800</pubDate><description><![CDATA[post和get的相关方法
1.post方法
restTemplate.postForObject(String url, @Nullable Object request, Class&lt;T&gt; responseType)

例：格式

restTemplate.postForObject(地址, new HttpEntity&lt;&gt;(入参对象, 请求头), 返回参数类型)

restTemplate.postForObject(url, new HttpEntity&lt;&gt;(pa]]></description><category></category></item><item><title><![CDATA[数据库中字段存在关键字，查询出错]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/123296747</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/123296747</guid><author>ccpshare</author><pubDate>Sat, 05 Mar 2022 17:09:35 +0800</pubDate><description><![CDATA[Java数据库中字段出现关键字，解决查询异常问题]]></description><category></category></item><item><title><![CDATA[数据库SQL语句规范(Mapper.xml文件)及模板]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/120454425</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/120454425</guid><author>ccpshare</author><pubDate>Fri, 08 Oct 2021 09:08:13 +0800</pubDate><description><![CDATA[数据库SQL语句规范(Mapper.xml文件)及模板
一.实体entity及请求对象，响应对象

实体

package com.xxx.xxx.entity;

import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baom]]></description><category></category></item><item><title><![CDATA[运行spring boot项目 报错{“timestamp“:16524, “status“:404, “error“:“Not Found“, “message“:““, “path“:“url“}]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/117787347</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/117787347</guid><author>ccpshare</author><pubDate>Thu, 10 Jun 2021 17:50:09 +0800</pubDate><description><![CDATA[报错 {“timestamp”:1623317106890, “status”:404, “error”:“Not Found”, “message”:"", “path”:"/api/mdc/factory/standard_text/update" }
这是一个非常低级的错的，我的错误原因是第二个。
错误原因一：Controller层没有添加注解 @Controller ，导致浏览器无法找到相应的地址。
解决方法：在Controller层加上@Controller注解重新运行项目即可。
错误原因二：Co]]></description><category></category></item><item><title><![CDATA[java: Compilation failed: internal java compiler error错误]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/112902575</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/112902575</guid><author>ccpshare</author><pubDate>Wed, 20 Jan 2021 18:28:24 +0800</pubDate><description><![CDATA[当运行主程序时出现下面这种情况时：

出现这种情况是：内部java编译器错误
解决办法(我的是1.8的)：
1.点击File—&gt;Projece Structure—&gt;Modules
找到Module DSDK：需要选择自己的jdk
然后点击Apply—&gt;OK

2.点击File—&gt;Settings—&gt;Build,Execution,Deployment—&gt;Compiler—&gt;Java Compiler
找到Project bytecode version 选择自己的]]></description><category></category></item><item><title><![CDATA[Springboot+Mybatis整合实现增删改查]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/112848310</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/112848310</guid><author>ccpshare</author><pubDate>Tue, 19 Jan 2021 19:57:02 +0800</pubDate><description><![CDATA[简单的实现了增删改查，我自己也是刚学，算是初学者，如由错误欢迎指出谢谢！
注意点是本人踩过的坑，希望对其他初学者有所帮助。
项目结构图：

第一步
创建springboot项目，在idea中创建很多情况都是连接失败的，我是在官网创建springboot项目网址进行创建的压缩包然后解压相应的文件夹中用idea打开，不想下载的可以用我在官网创建的：链接：https://pan.baidu.com/s/16EnNoyp3HjfCvru16HaXkg
提取码：1234
第二步
配置pom.xml文件
&lt;?xm]]></description><category></category></item><item><title><![CDATA[Invalid bound statement (not found): com.atguigu.springcloud.dao.PaymentDao.getPaymentById错误]]></title><link>https://blog.youkuaiyun.com/ccpshare/article/details/112833285</link><guid>https://blog.youkuaiyun.com/ccpshare/article/details/112833285</guid><author>ccpshare</author><pubDate>Tue, 19 Jan 2021 15:30:48 +0800</pubDate><description><![CDATA[Invalid bound statement (not found): com.atguigu.springcloud.dao.PaymentDao.getPaymentById]]></description><category></category></item></channel></rss>