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w文件代码:
- Baas.sendRequest({
- "url" : "/lmmjAdminBaas/lmmjAdmin",
- "action" : "getTodayLogin",
- "async" : false,
- "success" : function(data) {
- $(this.getElementByXid("h31")).text(data.count);
- }
- });
复制代码
service.m文件:
Java代码:- package lmmjAdminBaas;
- import java.sql.Connection;
- import java.sql.SQLException;
- import javax.naming.NamingException;
- import com.alibaba.fastjson.JSONObject;
- import com.justep.baas.action.ActionContext;
- import com.justep.baas.data.DataUtils;
- public class LmmjAdmin {
- private static final String DATASOURCE_LMMJ = "lmmj";
- //获取今日登陆人数
- public static JSONObject getTodayLogin(JSONObject params,ActionContext context) throws SQLException, NamingException{
- System.out.println("=====================================================================");
- JSONObject result = new JSONObject();
- Connection conn=null;
- try{
- conn = context.getConnection(DATASOURCE_LMMJ);
- String sql = "SELECT COUNT(cusId) FROM customerlogin WHERE TO_DAYS(loginTime) = TO_DAYS(SYSDATE()) GROUP BY cusId";
- int count = Integer.parseInt(DataUtils.getValueBySQL(conn, sql, null).toString());
- result.put("count", count);
- return result;
- } finally {
- conn.close();
- }
- }
-
- }
复制代码
报错信息:java.lang.NullPointerException
at com.justep.baas.servlet.BaasServlet.execService(Unknown Source)
at com.justep.baas.servlet.BaasServlet.service(Unknown Source)
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:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:745)
六月 21, 2017 5:16:24 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet WeX5_Baas_Servlet threw exception
java.lang.NullPointerException
at com.justep.baas.servlet.BaasServlet.execService(Unknown Source)
at com.justep.baas.servlet.BaasServlet.service(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:745)
请问这些应该是什么问题呢?
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