最近在对接金蝶云星空k3cloud webapi时，报一个莫名其妙的转换异常，具体如下：
同步部门异常!
ERP接口登录异常：java.lang.Class cannot be cast to java.lang.String at com.jkwms.k3cloudSyn.service.basics.DeptK3CloudService.synDept(DeptK3CloudService.java:89) at com.jkwms.k3cloudSyn.service.basics.DeptK3CloudService.byTime(DeptK3CloudService.java:32) ... 10 more没有头绪，于是就本地用代码测试了一下，也报错：
jsFilePath:/D:/idea-workspace/k3-cloud/target/classes/com/kingdee/k3cloud/webapi/gxJs/dep_mapper.js
登录失败：java.lang.Class cannot be cast to java.lang.String
java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.Stringat com.jg.k3cloudwebapi.ApiClient.login(ApiClient.java:41)at com.jgmes.sync.util.BarnaclePlugin.executeQuery(BarnaclePlugin.java:12)at jdk.nashorn.internal.scripts.Script$Recompilation$1$58A$\^eval\_.generateSql(<eval>:60)at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:639)at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:494)at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)at jdk.nashorn.api.scripting.ScriptObjectMirror.callMember(ScriptObjectMirror.java:199)at jdk.nashorn.api.scripting.NashornScriptEngine.invokeImpl(NashornScriptEngine.java:386)at jdk.nashorn.api.scripting.NashornScriptEngine.invokeFunction(NashornScriptEngine.java:190)at com.kingdee.tools.JSUtil.transform(JSUtil.java:61)at com.kingdee.k3cloud.webapi.sdktest.CommonTestNoApp.testBarnacleCall(CommonTestNoApp.java:44)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:766)at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$8(TestMethodTestDescriptor.java:217)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)at java.util.ArrayList.forEach(ArrayList.java:1255)at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)at java.util.ArrayList.forEach(ArrayList.java:1255)at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:198)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:169)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:93)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:58)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:141)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:57)at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:103)at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:85)at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:47)at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:63)at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)于是找之前项目的配置进行测试，竟然正常，于是用使用云星空自带的webapi测试工具测试了下，结果是正常的
仔细一看，区别在于地址后面多了个“/”，加上“/”之后就正常了！
jsFilePath:/D:/idea-workspace/k3-cloud/target/classes/com/kingdee/k3cloud/webapi/gxJs/dep_mapper.js
login:true
resultSize:245
0-result:{"code":200,"msg":"拉取数据成功","data":[{"erpCode":"BM000001","depName":"生产部","depCode":"BM000001","parentId":0,"depId":100979,"levelId":".100979."},{"erpCode":"BM000002","depName":"销售部","depCode":"BM000002","parentId":0,"depId":100980,"levelId":".100980."},{"erpCode":"BM000003","depName":"管理部门","depCode":"BM000003","parentId":0,"depId":100981,"levelId":".100981."},{"erpCode":"BM000004","depName":"董事会","depCode":"BM000004","parentId":0,"depId":100982,"levelId":".100982."},{"erpCode":"BM000005","depName":"总经办","depCode":"BM000005","parentId":0,"depId":100983,"levelId":".100983."},{"erpCode":"BM000006","depName":"董秘办","depCode":"BM000006","parentId":0,"depId":100984,"levelId":".100984."},{"erpCode":"BM000007","depName":"审计部","depCode":"BM000007","parentId":0,"depId":100985,"levelId":".100985."},{"erpCode":"BM000008","depName":"财务部","depCode":"BM000008","parentId":0,"depId":100986,"levelId":".100986."},{"erpCode":"BM000010","depName":"人力行政部","depCode":"BM000010","parentId":0,"depId":100987,"levelId":".100987."},{"erpCode":"BM000011","depName":"研发部","depCode":"BM000011","parentId":0,"depId":100988,"levelId":".100988."},{"erpCode":"BM000015","depName":"采购部","depCode":"BM000015","parentId":0,"depId":100989,"levelId":".100989."},{"erpCode":"BM000016","depName":"生产制造部","depCode":"BM000016","parentId":0,"depId":100990,"levelId":".100990."}]
totalCount:245Process finished with exit code 0
