Summary of implementation methods for filtering special characters and preventing SQL injection in jquery (recommended)

<script type="text/javascript" language="javascript">
	$(document).ready(function() {
		//返回
		$("#btnBack").click(function() {
			location.href = "${basePath}/user/user_List.jspx?action=peek";
		});
		
		//非空验证
		$("#btnSubmit").click(function(){
			if($("#name").val() == ""){
				alert("姓名必填！");
				$("#name").focus();
				return false;
			}
			
			//js验证 `~!@#$^&*()=|{}&#39;:;&#39;,\\[\\].<>/?~！@#￥……&*（）――|{}【】‘；：”“&#39;。，、？
			var pattern = new RegExp("[~&#39;!@#$%^&*()-+_=:]");
			if($("#name").val() != "" && $("#name").val() != null){
				if(pattern.test($("#name").val())){
					alert("非法字符！");
					$("#name").attr("value","");
					$("#name").focus();
					return false;
				}
			}
			
			if($("#enterDate").val() == ""){
				alert("入职时间必填！");
				return false;
			}
		});
		
		//是否存在用户名
		var existName = &#39;${action_msg}&#39;;
		if(existName != "" && existName != null){
			$("#span_").attr("style","display:block");
			$("#span_").attr("style","color:red");
			$("#span_").html("用户名"+existName+"已经存在！换~~");
		}else{
			$("#span_").attr("style","display:none");
		}
	});
</script>

$(document).ready(function(){
		//过滤非法字符
		function stripscript(s){ 
			var pattern = new RegExp("[`~!@#$^&*()=|{}&#39;:;&#39;,\\[\\].<>/?~！@#￥……&*（）――|{}【】‘；：”“&#39;。，、？]") 
			var rs = ""; 
			for (var i = 0; i < s.length; i++) { 
				rs = rs+s.substr(i, 1).replace(pattern, &#39;&#39;); 
			} 
		return rs; 
		} 
		
		//批量删除
		$("#btnDel").click(function() {
			if(confirm("确认删除？")){
					var lstInt = new Array();
					var index = 0;
					$("input[name=&#39;checkbox&#39;]:checked").each(function() {
							lstInt[index] = $(this).attr("value");
							index++;
					});
					if (lstInt.length <= 0) {
						alert("你还没有选择！");
						return;
					}
					if (lstInt != null&& lstInt.length > 0) {
						location.href = &#39;${basePath}/user/delUser.jspx?idLst=&#39; + lstInt;
					}
				}
			});
		

		// 全选
		$("#allCheck").click(function() {
			$("#notAllCheck").attr("checked", "");
			$("input[name=&#39;checkbox&#39;]").not("input:checked").each(function() {
				$(this).attr("checked", "checked");
			});
		});
		// 全不选
		$("#notAllCheck").click(function() {
			$("#allCheck").attr("checked", "");
			$("input[name=&#39;checkbox&#39;]:checked").each(function() {
				$(this).attr("checked", "");
			});
		});
		
		//查询
		$("#btnSelect").click(function(){
			if($("#inputName").val() == "" || $("#inputName").val() == "请输入员工姓名！"){
				alert("请输入员工姓名！[支持模糊匹配]");
				$("#inputName").focus();
			}else if($("#inputName").val() == "&#39;" ){
				alert("输入非法字符！");
				$("#inputName").focus();
				$("#inputName").attr("value","");
			}else{
				var name = $("#inputName").val();
				location.href="user_List.jspx?inputName="+stripscript(name);
			}
		});
		
		//友情提示
		$("#inputName").blur(function(){
			if($("#inputName").val() == ""){
				$(this).attr("value","请输入员工姓名！");
			}
			$(this).css("color","#D6D6FF");
		});
		
		$("#inputName").focus(function(){
			if($("#inputName").val() == "请输入员工姓名！"){
				$(this).attr("value","");
			}
			$(this).css("color","#6699FF");
		});
		
		var name = &#39;${name}&#39;;
		if(name != &#39;&#39; && name != null){
			$("#inputName").attr("value",name);
		}
		
		$("#btnBackIndex").click(function(){
			location.href="user_List.jspx";
		});
	});