<%
request.setCharacterEncoding("GBK");
String value1=request.getParameter("name");
String value2=request.getParameter("value");
String value3=value1+"+"+value2;
System.out.println(value3);
Cookie cookie=new Cookie("Test_Content",String.valueOf(value3));
System.out.println(cookie==null);
cookie.setMaxAge(60*60*24*365);
response.addCookie(cookie);
%>上边是添加!
<%
Cookie[] cookies=request.getCookies();
Cookie sCookie=null;
String svalue=null;
String sname=null;
String value="";
String[] value5=new String[2];
for(int i=0;i<cookies.length;i++)
{
System.out.println("cookie的数量为:"+i);
sCookie=cookies[i];
if(("Test_Content").equals(sCookie.getName())){
value=sCookie.getValue();
}
}
System.out.println(value);
value5= value.split("+");
for(int i=0;i<value5.length;i++){
if(i==0){
%>
<a href="<%=value5[1] %>">网站名称是:<%=value5[0] %></a>
<%
}else{
%>
<a href="<%=value5[1] %>"> 网站地址:<%=value5[1] %></a>
<%
}
}
%>这是获得,但是控制台输出的是
sdfsd`http://sfsd
false
cookie的数量为:02010-4-16 22:04:13 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
java.util.regex.PatternSyntaxException: Dangling meta character '+' near index 0
+
^
at java.util.regex.Pattern.error(Pattern.java:1713)
at java.util.regex.Pattern.sequence(Pattern.java:1878)
at java.util.regex.Pattern.expr(Pattern.java:1752)
at java.util.regex.Pattern.compile(Pattern.java:1460)
at java.util.regex.Pattern.<init>(Pattern.java:1133)
at java.util.regex.Pattern.compile(Pattern.java:823)
at java.lang.String.split(String.java:2293)
at java.lang.String.split(String.java:2335)
at org.apache.jsp.do_jsp._jspService(do_jsp.java:92)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
request.setCharacterEncoding("GBK");
String value1=request.getParameter("name");
String value2=request.getParameter("value");
String value3=value1+"+"+value2;
System.out.println(value3);
Cookie cookie=new Cookie("Test_Content",String.valueOf(value3));
System.out.println(cookie==null);
cookie.setMaxAge(60*60*24*365);
response.addCookie(cookie);
%>上边是添加!
<%
Cookie[] cookies=request.getCookies();
Cookie sCookie=null;
String svalue=null;
String sname=null;
String value="";
String[] value5=new String[2];
for(int i=0;i<cookies.length;i++)
{
System.out.println("cookie的数量为:"+i);
sCookie=cookies[i];
if(("Test_Content").equals(sCookie.getName())){
value=sCookie.getValue();
}
}
System.out.println(value);
value5= value.split("+");
for(int i=0;i<value5.length;i++){
if(i==0){
%>
<a href="<%=value5[1] %>">网站名称是:<%=value5[0] %></a>
<%
}else{
%>
<a href="<%=value5[1] %>"> 网站地址:<%=value5[1] %></a>
<%
}
}
%>这是获得,但是控制台输出的是
sdfsd`http://sfsd
false
cookie的数量为:02010-4-16 22:04:13 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
java.util.regex.PatternSyntaxException: Dangling meta character '+' near index 0
+
^
at java.util.regex.Pattern.error(Pattern.java:1713)
at java.util.regex.Pattern.sequence(Pattern.java:1878)
at java.util.regex.Pattern.expr(Pattern.java:1752)
at java.util.regex.Pattern.compile(Pattern.java:1460)
at java.util.regex.Pattern.<init>(Pattern.java:1133)
at java.util.regex.Pattern.compile(Pattern.java:823)
at java.lang.String.split(String.java:2293)
at java.lang.String.split(String.java:2335)
at org.apache.jsp.do_jsp._jspService(do_jsp.java:92)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
错误的地方是value5= value.split("+");
改成value5= value.split("\\+");
不错,我改了,把System.out.println("cookie的数量为:"+i);改成System.out.println("cookie的数量为:"+cookies.length);输出的是1,可是System.out.println(value);
我改成System.out.println(value==“”);返回时true了,还是找不到啊,