添加分账接收方开发文档地址是https://pay.weixin.qq.com/wiki/doc/api/allocation.php?chapter=27_3&index=4，写代码调用添加时候，总是收到一个错误，请各位大侠支招，多谢。

下面是调用代码片段，如下：

最后一句代码抛出下面异常：

2022-09-16 10:35:59.963 ERROR 139577 --- [nio-9031-exec-2] c.v.c.brand.BrandOrganController         : Error while extracting response for type [class com.vg.pay.vo.WxPayResultVO] and content type [text/plain;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false')

 at [Source: (PushbackInputStream); line: 1, column: 2]

org.springframework.web.client.RestClientException: Error while extracting response for type [class com.vg.pay.vo.WxPayResultVO] and content type [text/plain;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false')

 at [Source: (PushbackInputStream); line: 1, column: 2]

        at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:120)

        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:741)

        at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:674)

        at org.springframework.web.client.RestTemplate.postForObject(RestTemplate.java:418)

        at com.vg.pay.service.WxPayService.profitSharingAddReceiver(WxPayService.java:177)

        at com.vg.controller.brand.BrandOrganController.profitSharingAddReceiver(BrandOrganController.java:242)

        at com.vg.controller.brand.BrandOrganController.updateMch(BrandOrganController.java:107)

        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.base/java.lang.reflect.Method.invoke(Method.java:566)

        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)

        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)

        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)

        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)

        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)

        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)

        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)

        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)

        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)

        at org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:920)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:663)

        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)

        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)

        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)

        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)

        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)

        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)

        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)

        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)

        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)

        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)

        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)

        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

        at java.base/java.lang.Thread.run(Thread.java:834)

Caused by: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false')

 at [Source: (PushbackInputStream); line: 1, column: 2]

        at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:275)

        at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:257)

        at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:105)

        ... 48 more

Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false')

 at [Source: (PushbackInputStream); line: 1, column: 2]

        at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1851)

        at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:707)

        at com.fasterxml.jackson.core.base.ParserMinimalBase._reportUnexpectedChar(ParserMinimalBase.java:632)

        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._handleUnexpectedValue(UTF8StreamJsonParser.java:2683)

        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._nextTokenNotInObject(UTF8StreamJsonParser.java:865)

        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken(UTF8StreamJsonParser.java:757)

        at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4620)

        at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4469)

        at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3487)

        at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:269)

        ... 50 more