cookie sessionId 的过期时间, 网页取不出来
mybatis rise the error : Invalid bound statement ,because the resultType and resultMap
mybatis insert之后返回值.
display: block | inline-block | inline
form disable 和 readonly 的 区别
a标签垂直居中
<span class="radio-button"><a href="reduceOrders.do?foodId=<%=food.getFoodId()%>">－</a></span>
<span class="order-count"><%=food.getFoodCount()%></span>
<span class="radio-button"><a href="addOrders.do?foodId=<%=food.getFoodId()%>">+</a></span>
.radio-button {
width: 22px;
height: 22px;
display: inline-block;
border: 1px solid;
border-radius: 11px;
}
.radio-button > a {
width: 20px;
height: 20px;
display: block;
text-align: center;
/vertical-align: middle;/
line-height: 20px;
}
让<select> 必选
<select class="form-control form-control-line" name="foodType"
value="${food.foodType}">
<option value="鲁菜" <% if (foodType.equals("鲁菜")) out.print(" selected");%> >鲁菜 </option>
<option value="川菜"<% if (foodType.equals("川菜")) out.print(" selected");%>>川菜</option>
<option value="东北菜"<% if (foodType.equals("东北菜")) out.print(" selected");%>>东北菜</option>
<option value="湘菜"<% if (foodType.equals("湘菜")) out.print(" selected");%>>湘菜</option>
<option value="其他菜系"<% if (foodType.equals("其他菜系")) out.print(" selected");%>>其他菜系</option>
</select>图片操作
文件上传
配置SpringMVC输出调试信息
艺术字体
onBlur onChange
自定义错误提示信息
<input type="text" id ="phone" name="userTele" placeholder="手机号" required="" pattern="^.{6,}$" required />
document.getElementById("phone").oninvalid = function () {
document.getElementById("phone").setCustomValidity("请输入正确的手机号!");
};
document.getElementById("phone").oninput = function () {
document.getElementById("phone").setCustomValidity("");
};
自定义验证
<input type="password" id="password" name="userPwd" placeholder="密码" pattern="^.{6,}$" required="" title="至少六位"/>
<input type="password" id="rePassword" name="userPwd" placeholder="确认密码" required=""/>
document.getElementById("rePassword").oninput = function () {
if (document.getElementById("password").value !== document.getElementById("rePassword").value)
document.getElementById("rePassword").setCustomValidity("两次输入的密码不一致!");
else
document.getElementById("rePassword").setCustomValidity("");
};
<Context docBase="food" path="/food" reloadable="true" source="org.eclipse.jst.jee.server:food"/></Host>
eclipse 里 配置虚拟目录要在 server里先配置,再在tomcat里配置.
5月11号
a:after {content: " (" attr(href) ")";} 会在a后面跟上这个a的网址
上传文件的from改content-type
浏览器默认编码是iso-8859-1 , 要转码之后再存
blob byte
文件关不了, 只能gc()
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