<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[achaojava的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/achaojava</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; achaojava]]></copyright><item><title><![CDATA[An Errors/BindingResult argument is expected to be declared immediately after the model attribute, t]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/128921286</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/128921286</guid><author>achaojava</author><pubDate>Tue, 07 Feb 2023 16:35:35 +0800</pubDate><description><![CDATA[@RequestBody与BindingResult共同使用出现的异常BUG]]></description><category></category></item><item><title><![CDATA[redis键值出现 \xac\xed\x00\x05t\x00&的解决方法！！]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/128855565</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/128855565</guid><author>achaojava</author><pubDate>Thu, 02 Feb 2023 19:10:40 +0800</pubDate><description><![CDATA[redis键值出现 \xac\xed\x00\x05t\x00&的解决方法]]></description><category></category></item><item><title><![CDATA[提问：mysql查询文章标题满足条件后去重]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/127268584</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/127268584</guid><author>achaojava</author><pubDate>Tue, 11 Oct 2022 18:25:47 +0800</pubDate><description><![CDATA[求大神mysql去重select]]></description><category></category></item><item><title><![CDATA[MongoDB中aggregate中如何按照条件进行分类排序]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/127212750</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/127212750</guid><author>achaojava</author><pubDate>Sat, 08 Oct 2022 17:31:15 +0800</pubDate><description><![CDATA[mongodb语法问题]]></description><category></category></item><item><title><![CDATA[Java实现冒泡排序(基础算法篇)]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/108492779</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/108492779</guid><author>achaojava</author><pubDate>Wed, 09 Sep 2020 16:42:41 +0800</pubDate><description><![CDATA[public class MaoPaoPaiXu {
public static void main(String[] args) {
	//实现冒泡排序
	int [] number = {9,7,5,3,1,10,8,6,4,2}; 
	for(int i = 0; i &lt; number.length; i++) {				//建立外层循环
		boolean b = false;									//建立一个布尔值，如果值是true则退出循环
		for(int j = 0; j &lt; nu]]></description><category></category></item><item><title><![CDATA[Java（入门）从字符串中获取数字字符出现的次数]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/108486239</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/108486239</guid><author>achaojava</author><pubDate>Wed, 09 Sep 2020 11:42:51 +0800</pubDate><description><![CDATA[public class Testsuanfa{
public static int[] count(String str) {
	int [] count = new int[10];						//创建一个数组装0-9数字
	for(int i = 0; i &lt; count.length; i++) {		//遍历这个数组
		char c = str.charAt(i);						//将数组中的每个字符都取出
		if(c &gt;= '0' &amp;&amp; c &lt;= '9') {]]></description><category></category></item><item><title><![CDATA[Java（入门）从字符串中获取大写字母出现的次数]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/108486071</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/108486071</guid><author>achaojava</author><pubDate>Wed, 09 Sep 2020 11:36:40 +0800</pubDate><description><![CDATA[public class Testsuanfa(){
public static int [] count(String str){
int [] count = new int[26];				//存放26个英文字母  count[0] = A
for(int i = 0; i &lt; str.length(); i++) {	//遍历
char c = str.charAt(i);				//取出每一个字符
if(c &gt;= ‘A’ &amp;&amp; c &lt;= ‘Z’) {			//判断]]></description><category></category></item><item><title><![CDATA[Java入门之模糊查询（在前端页面输入一个字符串，模糊查询五个字段的数据 并且在前端页面渲染出来）]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/107603391</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/107603391</guid><author>achaojava</author><pubDate>Mon, 27 Jul 2020 02:09:36 +0800</pubDate><description><![CDATA[public class SearchData extends HttpServlet {
//第一个类 这个类用于调用类和方法和接收参数
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
　　String search = request.getParameter(“table_search”);
　　if(!search]]></description><category></category></item><item><title><![CDATA[Java基础问答]]></title><link>https://blog.youkuaiyun.com/achaojava/article/details/107603389</link><guid>https://blog.youkuaiyun.com/achaojava/article/details/107603389</guid><author>achaojava</author><pubDate>Mon, 27 Jul 2020 02:04:38 +0800</pubDate><description><![CDATA[1:为什么说java中只有值传递而无引用传递
2:为什么重写equals的同时建议重写hashcode
3:什么是java中的内存泄漏，解释说明
4:break/continue/return 关键词之间的区别
答：
值传递（pass by value）是指在调用函数时将实际参数复制一份传递到函数中，
这样在函数中如果对参数进行修改，将不会影响到实际参数。
说Java中无引用传递，只不过对于对象参数，值的内容是对象的引用，所以就不是引用传递。
因为object中的equals()方法比较的是对象的引用地址是]]></description><category></category></item></channel></rss>