<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Error_case</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Error_case]]></copyright><item><title><![CDATA[从SVN拉下来的项目不是web项目]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/52575189</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/52575189</guid><author>Error_case</author><pubDate>Mon, 30 Nov 2020 20:13:15 +0800</pubDate><description><![CDATA[javaweb项目从svn检出变成java项目

javaweb项目从svn检出后变成java项目，解决办法是：
项目右键–properties–Project Facets,勾选上Dynamic Web Module 、Java 两个复选框。点击ok即可。如图：]]></description><category></category></item><item><title><![CDATA[Hibernate4使用Session获取Connection返回ResultSet]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/51673565</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/51673565</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:33:38 +0800</pubDate><description><![CDATA[Hibernate4不能直接通过session获取到connection，须用如下方式实现：
@Test
    public void tests() throws SQLException {
        Session session=HibernateSessionFactory.getSession();
        ResultSet resultSet=session.do]]></description><category></category></item><item><title><![CDATA[Oracle中用一个表更新另一个表]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/51322217</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/51322217</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:32:44 +0800</pubDate><description><![CDATA[Oracle中用一个表的数据更新另一个表的数据

　　有下面两个表：将表tab1中id值与和表tab2中id值相同的行的val更新为tab2中val的值。

　　select * from tab1;

　　select * from tab2

　　最容易犯的错误是：update tab1 set val=(select val from tab2 where tab1.id=t]]></description><category></category></item><item><title><![CDATA[Spring Boot——2分钟构建spring web mvc REST风格HelloWorld]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/50057117</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/50057117</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:32:24 +0800</pubDate><description><![CDATA[转自：http://jinnianshilongnian.iteye.com/blog/1997192


Spring Boot使我们更容易去创建基于Spring的独立和产品级的可以”即时运行“的应用和服务。支持约定大于配置，目的是尽可能快地构建和运行Spring应用。



之前我们创建基于Spring的项目需要考虑添加哪些Spring依赖和第三方的依赖。使用Spring Bo]]></description><category></category></item><item><title><![CDATA[Failed to load JavaHL Library解决方法]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/49447221</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/49447221</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:31:33 +0800</pubDate><description><![CDATA[转自：http://www.blogjava.net/icewee/archive/2013/03/18/396594.html

进来的看官使用的是win7吧？！是64位的吧！？安装了eclipse的subclipse插件了吧！每次用到SVN插件时都会弹出如下的对话框，虽然不影响使用但是很不爽是不是啊？LZ也是一个有丁点儿强迫症的人，我想干掉这个弹出框！

稍后上图，服务器估计挂了！！]]></description><category></category></item><item><title><![CDATA[java定时任务嵌套]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/47258793</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/47258793</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:30:40 +0800</pubDate><description><![CDATA[package com.huatek.d20150803;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurren]]></description><category></category></item><item><title><![CDATA[《Effective Java》中推荐的hashCode算法]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/46503103</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/46503103</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:30:16 +0800</pubDate><description><![CDATA[在我们刚开始学习Java的时候就被教导，在编写类的时候，如果覆盖了Object的equals方法，那么必须要覆盖hashCode方法，并且如果两个对象用equals方法比较返回true，那么这两个对象hashCode返回的值也必须是相等的，并且对于同一个对象，equals方法需要比较的属性值没有被修改，那么每次调用hashCode返回的值应该是一致的。
hashCode主要是用于散列集合，通过对]]></description><category></category></item><item><title><![CDATA[重写equals方法]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/46501489</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/46501489</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:29:27 +0800</pubDate><description><![CDATA[实现标准equals流程如下：
public class EqualsTest {
	
	private String name;
	private Integer age;
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = nam]]></description><category></category></item><item><title><![CDATA[oracle分割字符串函数]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/46460193</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/46460193</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:28:59 +0800</pubDate><description><![CDATA[创建oracle分割字符串函数：
CREATE OR REPLACE TYPE str_split IS TABLE OF VARCHAR2 (4000);
CREATE OR REPLACE FUNCTION splitstr(p_string IN VARCHAR2, p_delimiter IN VARCHAR2)
    RETURN str_split 
    PIPELINE]]></description><category></category></item><item><title><![CDATA[利用org.apache.tools.zip.* 压缩、解压 .]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/46324171</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/46324171</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:28:15 +0800</pubDate><description><![CDATA[jar包：ant.jar
用到的package：org.apache.tools.zip.*;

package com.mr.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

imp]]></description><category></category></item><item><title><![CDATA[POI操作的一些样式设置]]></title><link>https://blog.youkuaiyun.com/Error_case/article/details/46046969</link><guid>https://blog.youkuaiyun.com/Error_case/article/details/46046969</guid><author>Error_case</author><pubDate>Fri, 09 Oct 2020 16:25:54 +0800</pubDate><description><![CDATA[Excel2003：
HSSFWorkbook workbook = new HSSFWorkbook();// excel文件对象
HSSFSheet sheet = workbook.createSheet("测试");// 工作表对象
sheet.setColumnWidth(0, 3000);//设置列宽


// 设置表头的样式
HSSFFont headfont = w]]></description><category></category></item></channel></rss>