1.前端jsp获取session
<%@ page import="java.util.Map" %>
<%@ page import="java.util.HashMap" %>
<%@ page import="java.util.Enumeration" %><%--
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User: shirukai
Date: 2017/10/16
Time: 19:19
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--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>jspGetSession</title>
</head>
<body>
<h2>根据key获取session</h2>
<h3>
<%=request.getSession().getAttribute("controllerSetSession1")%>
</h3>
<%
Map<String, String> sessionMap = new HashMap<String, String>();
//获取所有session名字
Enumeration sessionEnum = request.getSession().getAttributeNames();
while (sessionEnum.hasMoreElements()) {
String sessionName = sessionEnum.nextElement().toString();
sessionMap.put(sessionName, request.getSession().getAttribute(sessionName).toString());
}
%>
<table border="1">
<thead>
<tr>
<th>key</th>
<th>value</th>
</tr>
</thead>
<tbody>
<%
for (String key : sessionMap.keySet()
) { %>
<tr>
<td><%=key%>
</td>
<td><%=sessionMap.get(key)%>
</td>
</tr>
<%
}
%>
</tbody>
</table>
</body>
</html>
2.前端存入session
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>jspSetSession</title>
</head>
<body>
<%
request.getSession().setAttribute("jspSetSession","这是我通过jsp设置的session");
%>
</body>
</html>
3.后端获取Session
//controller 获取session
@RequestMapping(value = "getSession")
@ResponseBody
public Map<String, String> getSession(
HttpServletRequest request
) {
Map<String, String> sessionMap = new HashMap<String, String>();
//获取所有session名字
Enumeration sessionEnum = request.getSession().getAttributeNames();
while (sessionEnum.hasMoreElements()) {
String sessionName = sessionEnum.nextElement().toString();
sessionMap.put(sessionName, request.getSession().getAttribute(sessionName).toString());
System.out.println("_______________sessionEnum______" + sessionName);
}
return sessionMap;
}
4.后端存入Session
//controller 存入session
@RequestMapping(value = "/setSession")
@ResponseBody
public Map<String, String> setSession(
HttpServletRequest request
) {
request.getSession().setAttribute("controllerSetSession1", "这是我通过controller设置的session1");
request.getSession().setAttribute("controllerSetSession2", "这是我通过controller设置的session2");
Map<String, String> map = new HashMap<String, String>();
map.put("info", "存入成功");
return map;
}
