标签：style java io div re c
一、从request中取值：
1.取param：
servlet: request.getParameter()
request.getParameterValues()
jsp脚本：request.getParameter()
request.getParameterValues()
jstl/el: ${param.name}
${paramaValues.names[0]}
struts ognl:<s:property value="#parameters.ParamName[0]"/>
2.取attribute：
servlet: request.getAttribute();
jsp脚本：request.getAttribute();
jstl/el:${attrName}（依次查找request、session和application中的属性，找到为止)
${requestScope.attrName}
struts ognl:<s:property value="#attrName">（依次查找request、session和application中的属性，找到为止)
<s:property value="#request.attrName">
二、从servletContext（application）中取值：
1.取InitParam:
servlet: getServletContext().getInitParam("parmaName");
getServletConfig().getServletContext.getInitParam("paramName");
(getServletConfig().getInitParam("parmaName")和getInitParam("parmaName")是取得当前servlet中的initParam);
jsp脚本：application.getInitParam("paramName");
config.getServletContext().getInitParam("paramName");
config.getInitParam("paramName");
jstl/el: ${initParam.paramName}
2.取attribute：
servlet: getServletContext().getAttribute("attrName");
getServletConfig().getServletContext.getAttribute("attrName");
jsp脚本：application.getAttribute("attrName");
jstl/el:${attrName}（依次查找request、session和application中的属性，找到为止)
${applicationScope.attrName}
struts ognl:<s:property value="#attrName">（依次查找request、session和application中的属性，找到为止)
<s:property value="#application.attrName">
三、从session中取值：
取attribute：
servlet: request.getSession().getAttribute("attrName");
jsp脚本：session.getAttribute("attrName");
jstl/el: ${attrName}（依次查找request、session和application中的属性，找到为止)
${sessionScope.attrName}
struts ognl:<s:property value="#attrName">（依次查找request、session和application中的属性，找到为止)
<s:property value="#session.attrName">
四、从page中取值：
取attribute:
jsp脚本：pageContext.getAttribute(name);
jstl/el: ${pageContext.attrName}
五、从cookie中取值：
servlet: request.getCookies();
jsp脚本：request.getCookies();
jstl/el: ${cookie.cookieName.value}
Java web 常见对象的取值方法整理,布布扣,bubuko.com
Java web 常见对象的取值方法整理
标签：style java io div re c
原文地址：http://blog.csdn.net/shengwusuoxi/article/details/37760895
