ERROR o.a.c.c.C.[.[localhost].[/].[dispatcherServlet] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.RuntimeException: 【微信统一支付】发起支付, returnCode != SUCCESS, returnMsg = system error] with root cause

这是一个Java Web应用程序中的错误日志，它表明在处理请求时发生了运行时异常，具体原因是发起微信统一支付时，returnCode不是SUCCESS，返回的returnMsg是system error。可能需要检查微信支付接口的调用参数是否正确，以及可能存在的网络连接问题。如果无法解决问题，可能需要查看更详细的日志信息或者联系相关的技术支持团队帮助解决。

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{"date": "2023-06-05 16:19:48.743", "traceId": "faba03a649d007df", "level": "ERROR", "logger": "org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/contract].[dispatcherServlet]", "msg": "Servlet.service() for servlet [dispatcherServlet] in context with path [/contract] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause"} java.lang.NullPointerException: null at java.base/java.util.Objects.requireNonNull(Objects.java:221) 报错原因String path = new FileTxtHandleUtil().projectSource("./template/excel");

根据你给出的信息，这段错误信息表明在一个名为dispatcherServlet的servlet中处理请求时，出现了NullPointerException异常。具体来说，是在调用Objects.requireNonNull方法时出现了异常。该方法是Java 8中的一个工具方法，用于检查传入的对象是否为null，如果是null，则抛出一个NullPointerException异常。在这个异常中，它指出了出现异常的代码行，即String path = new FileTxtHandleUtil().projectSource("./template/excel");这一行。也就是说，可能是在调用FileTxtHandleUtil类的projectSource方法时，传入了一个null值，导致出现了异常。需要检查代码中是否存在这样的问题。

WHERE (welfare_no = ? AND status = ?) ::: [WEL00013, 2]"} {"date": "2023-06-05 16:00:14.681", "traceId": "306f5ac5d18fb478", "level": "INFO", "logger": "com.generalichina.ewmp.sdk.gcl.util.FileTxtHandleUtil", "msg": "临时文件路径：/home/app01/data/services/test_ewmp_backend/ewmp-contract-service/lib/template/excel/"} {"date": "2023-06-05 16:00:14.683", "traceId": "306f5ac5d18fb478", "level": "ERROR", "logger": "org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/contract].[dispatcherServlet]", "msg": "Servlet.service() for servlet [dispatcherServlet] in context with path [/contract] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause"} java.lang.NullPointerException: null at java.base/java.util.Objects.

It seems like you have provided an error message related to a Java web application. Can you provide more context or information about the issue you are facing?