场景：
@RequestMapping("/demo")
public void doTmallGujia(String callbackUrl, HttpServletResponse response){
try {
if(StringUtils.isNotBlank(callbackUrl)){
callbackUrl = URLDecoder.decode(callbackUrl, "UTF-8");
response.sendRedirect(callbackUrl);
}
} catch (IOException e) {
LOGGER.error("send doTmallGujia error: ",e);
}
}
启动之后访问报错：
严重: Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception java.lang.IllegalStateException: Cannot create a session after the response has been committed at org.apache.catalina.connector.Request.doGetSession(Request.java:2921) at org.apache.catalina.connector.Request.getSession(Request.java:2318) at org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:899) at org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:911) at com.wupao.filter.MonitorFilter.doFilter(MonitorFilter.java:160) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.wupao.filter.CORSFilter.doFilter(CORSFilter.java:31) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)
解决方案：
session放在response.sendRedirect("");之前创建即可！
代码如下：
@RequestMapping("/demo")
public void doTmallGujia(String callbackUrl, HttpServletResponse response,HttpServletRequest request){
try {
request.getSession();
if(StringUtils.isNotBlank(callbackUrl)){
callbackUrl = URLDecoder.decode(callbackUrl, "UTF-8");
response.sendRedirect(callbackUrl);
}
} catch (IOException e) {
LOGGER.error("send doTmallGujia error: ",e);
}
}
时间： 2024-11-13 10:12:11