請問微信可以回復(fù)“您發(fā)送的消息是：0”,為什么外網(wǎng)打開還是500空指針異常？
HTTP?Status?[500]???[Internal?Server?Error] Type?Exception?Report Description?The?server?encountered?an?unexpected?condition?that?prevented?it?from?fulfilling?the?request. Exception java.lang.NullPointerException java.util.ComparableTimSort.countRunAndMakeAscending(Unknown?Source) java.util.ComparableTimSort.sort(Unknown?Source) java.util.Arrays.sort(Unknown?Source) util.CheckUtil.checkSignature(CheckUtil.java:21) servlet.WeixinServlet.doGet(WeixinServlet.java:35) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) Note?The?full?stack?trace?of?the?root?cause?is?available?in?the?server?logs. Apache?Tomcat/9.0.0.M21
這些都是什么意思??？
2017-07-13
這個(gè)是空指針異常問題