# SpringMVC Learning

> ## Basic
* 網頁匯入、重新導向、URL 處理標籤https://openhome.cc/Gossip/ServletJSP/ImportRedirectUrlTag.html
* redirect vs. forward : https://blog.csdn.net/blueheart20/article/details/87935046
* ==在Spring中，redirect預設使用GET，forward預設使用POST，若是在Controller中沒有註明Requested method則預設使用GET==
* ==window.location.href預設是用GET==
* 傳值:
* https://kknews.cc/zh-tw/code/q45kjyb.html
* https://blog.csdn.net/yelllowcong/article/details/78526024
* How to include JS or CSS files in a JSP page : https://www.mkyong.com/spring-mvc/spring-mvc-how-to-include-js-or-css-files-in-a-jsp-page/
* **若失敗請看Debug:使用Defaule Handler**
> ## CURD
* REST:
* https://www.viralpatel.net/spring-4-mvc-rest-example-json/
* http://websystique.com/springmvc/spring-4-mvc-rest-service-example-using-restcontroller/
* https://www.technicalkeeda.com/spring-tutorials/complete-spring-mvc-restful-web-services-example
> ## Search
* https://blog.csdn.net/u013360850/article/details/52672875
* https://blog.csdn.net/bryanmelody/article/details/66969023
* https://blog.csdn.net/hehuicong/article/details/40378217
* https://blog.csdn.net/qq_38263083/article/details/81944370
* https://blog.csdn.net/qq_31247177/article/details/7996641
* https://stackoverflow.com/questions/48092988/dynamic-sql-query-in-java

extract data
* https://blog.csdn.net/u013174217/article/details/61917721
* https://blog.csdn.net/ununie/article/details/98658227

* JAVA多語句查詢
* https://www.itread01.com/p/288875.html
* https://www.itread01.com/p/288875.html
* https://www.twblogs.net/a/5b8adc352b71775d1ce98b3a
* https://kknews.cc/zh-tw/code/p292mm2.html

> ## UploadFile
* [ajax + display]https://www.itread01.com/content/1540956123.html
* [ajax]https://www.itread01.com/content/1542306963.html
* [display]https://www.itread01.com/content/1544765258.html
* [success]https://www.itread01.com/content/1545343771.html
* <驗證>https://dotblogs.com.tw/topcat/archive/2009/02/20/7250.aspx
> ## 30 Days
* https://ithelp.ithome.com.tw/users/20107812/ironman/1538?page=1

> ## Form

* ==注意path的觀念!(command)==: https://www.iteye.com/blog/elim-1807330

* checkboxes and dropdown: https://www.yiibai.com/spring_mvc/springmvc_dropdown.html
* get dropdown box value:

var age_max = document.getElementById("age_max");
    var ageh_val = age_max.options[age_max.selectedIndex].value;

* get radio button value:

var gender_value = "";
    var gender = document.getElementsByName("gender");
    for (var i = 0; i < gender.length; i++) {
        if (gender[i].checked) {
		    gender_value = gender[i].value;
        }
    }

> ## Log in
* https://codertw.com/%E4%BC%BA%E6%9C%8D%E5%99%A8/170039/

> ## 小細節

==* 如何在JSTL中接變數再傳給function:==
注意用' '接變數才吃得到值

<c:forEach var="conditions" items="${list}">
	<tr>
	<td>${conditions.name}</td>
	<td>${conditions.startTime}</td>
	<td>${conditions.endTime}</td>
	<td><a href="detailform/${conditions.serialNum}">查詢</a></td>
	<td><a href="editform/${conditions.serialNum}">編輯</a></td>
	<td><a href="#" onclick="doFirm('${conditions.serialNum}')">刪除</a></td>
	</tr>
</c:forEach>
                    
<script>
    function doFirm(obj) {

		if (confirm("確定刪除嗎?")) {
			window.location.href = 'delete/'+obj;
		}
	};
</script>

###### tags: `spring-mvc`