我正在尝试执行wsgen命令来创建Web服务。我的命令行是：
PATH=%path%;C:\Program Files\Java\jdk1.6.0_24\bin
wsgen -cp ".\war\WEB-INF\classes" -wsdl -keep -r ".\war" -d ".\war\WEB-INF\classes" - s ".\war" "com.example.prototipo21.Greeting"
并出现此错误：
警告：在类型'javax.jdo.annotations.Persisten'中找不到注释方法'valueStrategy（）'：找不到javax.jdo.annotations.Persistent的类文件。
错误：找不到com.example.prototipo21.Greeting的类文件
1个错误
1条警告
错误：编译失败，应该已报告错误
我认为问题可能出在我将数据存储应用程序集成到Web服务应用程序中，所以我的课程有不同的注释。例如：
@WebService
public class Greeting {
@PrimaryKey
@Persistent (valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private User author;
...
@WebMethod
public Key getKey() {
return key;
}
@WebMethod
public User getAuthor(){
return author;
....
你知道我的意思？？任何想法都将非常有用！谢谢！
这些是我的命令和整个跟踪：
c:\Users\...\Desktop\....\Eclipse\Prototipo_21>PATH=%pa
th%;C:\Program Files\Java\jdk1.7.0_03\bin
c:\Users\...\Desktop\....\Eclipse\Prototipo_21>wsgen -c
p ".\war\WEB-INF\classes" -wsdl -keep -r ".\war" -d ".\war\WEB-INF\classes" -s "
.\war" "com.example.prototipo21.Greeting"
warning: The apt tool and its associated API are planned to be
removed in the next major JDK release. These features have been
superseded by javac and the standardized annotation processing API,
javax.annotation.processing and javax.lang.model. Users are
recommended to migrate to the annotation processing features of
javac; see the javac man page for more information.
.\war\WEB-INF\classes\com\example\prototipo21\Greeting.class: warning: Cannot fi
nd annotation method 'valueStrategy()' in type 'Persistent': class file for java
x.jdo.annotations.Persistent not found
warning: unknown enum constant IdGeneratorStrategy.IDENTITY
reason: class file for javax.jdo.annotations.IdGeneratorStrategy not found
error: Could not create declaration for annotation type javax.jdo.annotations.Pr
imaryKey
error: Could not create declaration for annotation type javax.jdo.annotations.Pe
rsistent
Problem encountered during annotation processing;
see stacktrace below for more information.
com.sun.tools.internal.ws.processor.modeler.ModelerException: modeler error: Cla
sses annotated with @javax.jws.WebService must have a public default constructor
. Class: com.example.prototipo21.Greeting
at com.sun.tools.internal.ws.processor.modeler.annotation.WebServiceAP.o
nError(WebServiceAP.java:229)
at com.sun.tools.internal.ws.processor.modeler.annotation.WebServiceVisi
tor.isLegalImplementation(WebServiceVisitor.java:515)
at com.sun.tools.internal.ws.processor.modeler.annotation.WebServiceVisi
tor.shouldProcessWebService(WebServiceVisitor.java:322)
at com.sun.tools.internal.ws.processor.modeler.annotation.WebServiceVisi
tor.visitClassDeclaration(WebServiceVisitor.java:113)
at com.sun.tools.apt.mirror.declaration.ClassDeclarationImpl.accept(Clas
sDeclarationImpl.java:113)
at com.sun.tools.internal.ws.processor.modeler.annotation.WebServiceAP.b
uildModel(WebServiceAP.java:319)
at com.sun.tools.internal.ws.processor.modeler.annotation.WebServiceAP.p
rocess(WebServiceAP.java:260)
at com.sun.mirror.apt.AnnotationProcessors$CompositeAnnotationProcessor.
process(AnnotationProcessors.java:84)
at com.sun.tools.apt.comp.Apt.main(Apt.java:480)
at com.sun.tools.apt.main.AptJavaCompiler.compile(AptJavaCompiler.java:2
70)
at com.sun.tools.apt.main.Main.compile(Main.java:1127)
at com.sun.tools.apt.main.Main.compile(Main.java:989)
at com.sun.tools.apt.Main.processing(Main.java:113)
at com.sun.tools.apt.Main.process(Main.java:103)
at com.sun.tools.apt.Main.process(Main.java:85)
at com.sun.tools.internal.ws.wscompile.WsgenTool.buildModel(WsgenTool.ja
va:207)
at com.sun.tools.internal.ws.wscompile.WsgenTool.run(WsgenTool.java:111)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.sun.tools.internal.ws.Invoker.invoke(Invoker.java:120)
at com.sun.tools.internal.ws.WsGen.main(WsGen.java:42)
error: compilation failed, errors should have been reported
最佳答案
该错误与您编写的代码没有问题。问题出在类路径上。如果检查错误，则可以清楚地看到：
找不到com.example.prototipo21.Greeting1的类文件
修复您的类路径，以便该类可供wsgen使用，并且您可能会向前迈进，并偶然遇到下一组错误:)祝您好运
关于java - wsgen和App Engine，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/10608295/