关于js调用错误信息并弹出提示框的问题 关于JSP跳转前弹出提示框的问题
javascript\u81ea\u5b9a\u4e49\u9519\u8bef\u63d0\u793a,\u6211\u4eec\u5728\u505a\u767b\u5f55\u9a8c\u8bc1\u65f6\uff0c\u6211\u4eec\u4f7f\u7528alert\u5f39\u51fa\u8b66\u544a\u6846\u505a\u7684\u3002\u8fd9\u6837\uff0c\u4f60\u53ef\u4ee5\u5148\u8bbe\u5b9a\u4e00\u4e2a\u9a8c\u8bc1\u51fd\u6570check\uff0c\u9a8c\u8bc1\u6210\u529f\u8fd4\u56detrue\uff0c\u5931\u8d25\u5219\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u3002
\u90a3\u4e48\u5728\u70b9\u51fbid\u4e3asubmit\u7684\u6309\u94ae\uff08\u5047\u8bbe\u662f\u8fd9\u4e2a\u8868\u5355\u7684\u63d0\u4ea4\u6309\u94ae\uff09\u65f6\uff0c\u7ed1\u5b9a\u4e00\u4e2afunction\uff0c\u5982\u4e0b\uff1a
$("#submit").click(function(){ var result = check(); if(result!==true){ $("#error").show().html(result); }else{ $("#error").hide(); return true; }});\u53e6\u5916\uff0cerror\u91cc\u9762\u7684\u5b57\u5982\u679c\u8981\u663e\u793a\u4e3a\u7ea2\u8272\uff0c\u53ef\u4ee5\u7528css
#error{color:red;display:none;/*\u70b9\u51fb\u63d0\u4ea4\u4e4b\u524d\uff0c\u9690\u85cf\u9519\u8bef\u6846*/}
JSP\u8df3\u8f6c\u524d\u5f39\u51fa\u63d0\u793a\u6846\u7684\u95ee\u9898\u7684\u5b9e\u73b0\uff1a
\u65b9\u5f0f1\uff1a JSP\u524d\u7aef
alert("\u60a8\u8fd8\u6ca1\u6709\u767b\u5f55\uff0c\u8bf7\u767b\u5f55...");
window.document.location.href="userlogin.html";
\u65b9\u5f0f2\uff1a Java\u540e\u53f0
public void popAlert() {
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
out.print("alert('\u60a8\u8fd8\u6ca1\u6709\u767b\u5f55\uff0c\u8bf7\u767b\u5f55...'); window.location='userlogin.html' ");
out.flush();
out.close();
}
\u65b9\u5f0f3\uff1a Java\u540e\u53f0 + JSP\u524d\u7aef
1\uff09 Java\u540e\u53f0\u4ee3\u7801\u6bb5
public void popAlert() {
request.setAttribute("loginError", "\u60a8\u8fd8\u6ca1\u6709\u767b\u5f55\uff0c\u8bf7\u767b\u5f55..."); // \u8bbe\u7f6e\u9519\u8bef\u5c5e\u6027
request.getRequestDispatcher("userlogin.html").forward(request, response);
}
2\uff09 JSP\u524d\u7aef\u4ee3\u7801\u6bb5
<%
String errorInfo = (String)request.getAttribute("loginError"); // \u83b7\u53d6\u9519\u8bef\u5c5e\u6027
if(errorInfo != null) {
%>
alert(""); // \u5f39\u51fa\u9519\u8bef\u4fe1\u606f
window.location='userlogin.html' ; // \u8df3\u8f6c\u5230\u767b\u5f55\u754c\u9762
<%
}
%>
form target="xxx"
此时提交后 你在后台往iframe里刷javascript串
然后可以有下面类似的代码
<script type="text/javascript">
if(/成功/){
parent.location='xxx';
}else{
parent.alert('登陆不成功');
}
</script>
alert()弹出 貌似不好看哦
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绛旓細setTimeout(function(){ //$('#id').hide(); //document.getElementById(id).style.display="none";}, 3000 );
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