我的问题似乎相当简单，但是从昨天下午起我就难倒了。我的域类功能不起作用（保存和检索记录）。使用intellij Idea，如果我输入＆＃34; myDomain.＆＃34;自动完成仍会检测到域字段。声明对象后，自动完成仍会建议域属性。无论如何，这就是我得到的：
控制器：
def update(){
switch(request.getMethod()){
case 'POST':
if(params.fire == 'true'){
def oldClients = Clients.findAll() /* This is where it breaks. Also
note that all other methods of retrieving data doesn't work either,
as well as trying to create and save new records. */
}
break
}
}
域
// I shortened the domain coz the original has a buttload of fields.
class Clients {
String CClientId
String CFirstName
String CSurname
String CEmail
static mapping = {
id name: "CClientId", generator: "assigned"
version false
datasource "dataSourceOld"
cache usage: 'read-only'
}
static constraints = {
CClientId(maxSize: 12)
CFirstName(nullable: true, maxSize: 5)
CSurname(maxSize: 30)
CEmail(maxSize: 30)
}
}
还有一点要注意的是，当我尝试以另一种方式声明域的约束时，即CClientId maxSize: 12而不是我在上面声明的方式，我在{{cannot resolve symbol上出现CClientId错误1}}和';', '}' or new line expected后的冒号maxSize错误，
以下是我尝试运行更新操作时出现的错误：
.Error
|
2016-06-28 09:42:02,741 [http-bio-7070-exec-10] ERROR errors.GrailsExceptionResolver - MissingMethodException occurred when processing request: [POST] /oneyeargift/adminhome/updateAbases - parameters:
fire: true
No signature of method: unipoint.oyg.domain.old.ClientsOyg.findAll() is applicable for argument types: () values: []
Possible solutions: findAll(), findAll(), findAll(groovy.lang.Closure), findAll(java.lang.Object), findAll(java.lang.String), findAll(groovy.lang.Closure). Stacktrace follows:
Message: No signature of method: unipoint.oyg.domain.old.ClientsOyg.findAll() is applicable for argument types: () values: []
Possible solutions: findAll(), findAll(), findAll(groovy.lang.Closure), findAll(java.lang.Object), findAll(java.lang.String), findAll(groovy.lang.Closure)
Line | Method
->> -2 | newInstance0 in sun.reflect.NativeConstructorAccessorImpl
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
| 39 | newInstance in ''
| 27 | newInstance . . . . . . . . . . in sun.reflect.DelegatingConstructorAccessorImpl
| 513 | newInstance in java.lang.reflect.Constructor
| 991 | jlrConstructorNewInstance . . . in org.springsource.loaded.ri.ReflectiveInterceptor
| 77 | invoke in org.codehaus.groovy.reflection.CachedConstructor
| 71 | doConstructorInvoke . . . . . . in ''
| 42 | callConstructor in org.codehaus.groovy.runtime.callsite.ConstructorSite
| 57 | defaultCallConstructor . . . . in org.codehaus.groovy.runtime.callsite.CallSiteArray
| 182 | callConstructor in org.codehaus.groovy.runtime.callsite.AbstractCallSite
| 194 | callConstructor . . . . . . . . in ''
| -1 | findAll in unipoint.oyg.domain.old.ClientsOyg$$EPpP6s0O
| 45 | defaultCall . . . . . . . . . . in org.codehaus.groovy.runtime.callsite.CallSiteArray
| 108 | call in org.codehaus.groovy.runtime.callsite.AbstractCallSite
| 112 | call . . . . . . . . . . . . . in ''
| 880 | updateAbases in unipoint.oyg.control.admin.AdminhomeController$$EPpP3IMS
| -2 | invoke0 . . . . . . . . . . . . in sun.reflect.NativeMethodAccessorImpl
| 39 | invoke in ''
| 25 | invoke . . . . . . . . . . . . in sun.reflect.DelegatingMethodAccessorImpl
| 597 | invoke in java.lang.reflect.Method
| 122 | invoke . . . . . . . . . . . . in org.springsource.loaded.ri.ReloadedTypeInvoker$2
| 1288 | jlrMethodInvoke in org.springsource.loaded.ri.ReflectiveInterceptor
| 69 | invoke . . . . . . . . . . . . in org.codehaus.groovy.grails.web.servlet.mvc.MixedGrailsControllerHelper
| -1 | invoke in grails.plugin.cache.web.ProxyAwareMixedGrailsControllerHelper
| 348 | handleAction . . . . . . . . . in org.codehaus.groovy.grails.web.servlet.mvc.AbstractGrailsControllerHelper
| -1 | handleAction in grails.plugin.cache.web.ProxyAwareMixedGrailsControllerHelper
| 231 | executeAction . . . . . . . . . in org.codehaus.groovy.grails.web.servlet.mvc.AbstractGrailsControllerHelper
| -1 | executeAction in grails.plugin.cache.web.ProxyAwareMixedGrailsControllerHelper
| 197 | handleURI . . . . . . . . . . . in org.codehaus.groovy.grails.web.servlet.mvc.AbstractGrailsControllerHelper
| -1 | handleURI in grails.plugin.cache.web.ProxyAwareMixedGrailsControllerHelper
| 118 | handleURI . . . . . . . . . . . in org.codehaus.groovy.grails.web.servlet.mvc.AbstractGrailsControllerHelper
| -1 | handleURI in grails.plugin.cache.web.ProxyAwareMixedGrailsControllerHelper
| 72 | handleRequest . . . . . . . . . in org.codehaus.groovy.grails.web.servlet.mvc.SimpleGrailsController
| 48 | handle in org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter
| 328 | doDispatch . . . . . . . . . . in org.codehaus.groovy.grails.web.servlet.GrailsDispatcherServlet
| 852 | doService in org.springframework.web.servlet.DispatcherServlet
| 882 | processRequest . . . . . . . . in org.springframework.web.servlet.FrameworkServlet
| 789 | doPost in ''
| 646 | service . . . . . . . . . . . . in javax.servlet.http.HttpServlet
| 727 | service in ''
| 305 | internalDoFilter . . . . . . . in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter in ''
| 200 | doFilter . . . . . . . . . . . in grails.plugin.cache.web.filter.PageFragmentCachingFilter
| -1 | doFilter in grails.plugin.cache.web.filter.ehcache.EhcachePageFragmentCachingFilter
| 63 | doFilter . . . . . . . . . . . in grails.plugin.cache.web.filter.AbstractFilter
| 346 | invokeDelegate in org.springframework.web.filter.DelegatingFilterProxy
| 259 | doFilter . . . . . . . . . . . in ''
| 243 | internalDoFilter in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter . . . . . . . . . . . in ''
| 70 | doFilter in org.springframework.web.filter.OncePerRequestFilter
| 243 | internalDoFilter . . . . . . . in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter in ''
| 70 | doFilter . . . . . . . . . . . in org.springframework.web.filter.OncePerRequestFilter
| 243 | internalDoFilter in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter . . . . . . . . . . . in ''
| 70 | doFilter in org.springframework.web.filter.OncePerRequestFilter
| 243 | internalDoFilter . . . . . . . in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter in ''
| 749 | invoke . . . . . . . . . . . . in org.apache.catalina.core.ApplicationDispatcher
| 487 | processRequest in ''
| 412 | doForward . . . . . . . . . . . in ''
| 339 | forward in ''
| 318 | forwardRequestForUrlMappingInfo in org.codehaus.groovy.grails.web.util.WebUtils
| 283 | forwardRequestForUrlMappingInfo in ''
| 274 | forwardRequestForUrlMappingInfo in ''
| 203 | doFilterInternal in org.codehaus.groovy.grails.web.mapping.filter.UrlMappingsFilter
| 76 | doFilter . . . . . . . . . . . in org.springframework.web.filter.OncePerRequestFilter
| 243 | internalDoFilter in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter . . . . . . . . . . . in ''
| 82 | doFilterInternal in com.linkedin.grails.profiler.ProfilerFilter
| 76 | doFilter . . . . . . . . . . . in org.springframework.web.filter.OncePerRequestFilter
| 243 | internalDoFilter in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter . . . . . . . . . . . in ''
| 206 | obtainContent in org.codehaus.groovy.grails.web.sitemesh.GrailsPageFilter
| 152 | doFilter . . . . . . . . . . . in ''
| 243 | internalDoFilter in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter . . . . . . . . . . . in ''
| -1 | call in javax.servlet.FilterChain$doFilter
| 45 | doFilter . . . . . . . . . . . in org.grails.plugin.resource.DevModeSanityFilter
| 243 | internalDoFilter in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter . . . . . . . . . . . in ''
| 369 | doFilter in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 109 | invoke . . . . . . . . . . . . in org.springframework.security.web.access.intercept.FilterSecurityInterceptor
| 83 | doFilter in ''
| 381 | doFilter . . . . . . . . . . . in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 97 | doFilter in org.springframework.security.web.access.ExceptionTranslationFilter
| 381 | doFilter . . . . . . . . . . . in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 78 | doFilter in org.springframework.security.web.authentication.AnonymousAuthenticationFilter
| 381 | doFilter . . . . . . . . . . . in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 119 | doFilter in org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter
| 381 | doFilter . . . . . . . . . . . in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 54 | doFilter in org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter
| 381 | doFilter . . . . . . . . . . . in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 187 | doFilter in org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter
| 40 | doFilter . . . . . . . . . . . in org.codehaus.groovy.grails.plugins.springsecurity.RequestHolderAuthenticationFilter
| 381 | doFilter in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 79 | doFilter . . . . . . . . . . . in org.codehaus.groovy.grails.plugins.springsecurity.MutableLogoutFilter
| 381 | doFilter in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 79 | doFilter . . . . . . . . . . . in org.springframework.security.web.context.SecurityContextPersistenceFilter
| 381 | doFilter in org.springframework.security.web.FilterChainProxy$VirtualFilterChain
| 168 | doFilter . . . . . . . . . . . in org.springframework.security.web.FilterChainProxy
| 346 | invokeDelegate in org.springframework.web.filter.DelegatingFilterProxy
| 259 | doFilter . . . . . . . . . . . in ''
| 243 | internalDoFilter in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter . . . . . . . . . . . in ''
| 113 | doFilter in io.jdev.miniprofiler.servlet.ProfilingFilter
| 243 | internalDoFilter . . . . . . . in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter in ''
| 69 | doFilterInternal . . . . . . . in org.codehaus.groovy.grails.web.servlet.mvc.GrailsWebRequestFilter
| 76 | doFilter in org.springframework.web.filter.OncePerRequestFilter
| 243 | internalDoFilter . . . . . . . in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter in ''
| 66 | doFilterInternal . . . . . . . in org.codehaus.groovy.grails.web.filters.HiddenHttpMethodFilter
| 76 | doFilter in org.springframework.web.filter.OncePerRequestFilter
| 243 | internalDoFilter . . . . . . . in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter in ''
| 88 | doFilterInternal . . . . . . . in org.springframework.web.filter.CharacterEncodingFilter
| 76 | doFilter in org.springframework.web.filter.OncePerRequestFilter
| 346 | invokeDelegate . . . . . . . . in org.springframework.web.filter.DelegatingFilterProxy
| 259 | doFilter in ''
| 243 | internalDoFilter . . . . . . . in org.apache.catalina.core.ApplicationFilterChain
| 210 | doFilter in ''
| 222 | invoke . . . . . . . . . . . . in org.apache.catalina.core.StandardWrapperValve
| 123 | invoke in org.apache.catalina.core.StandardContextValve
| 171 | invoke . . . . . . . . . . . . in org.apache.catalina.core.StandardHostValve
| 99 | invoke in org.apache.catalina.valves.ErrorReportValve
| 118 | invoke . . . . . . . . . . . . in org.apache.catalina.core.StandardEngineValve
| 408 | service in org.apache.catalina.connector.CoyoteAdapter
| 1023 | process . . . . . . . . . . . . in org.apache.coyote.http11.AbstractHttp11Processor
| 589 | process in org.apache.coyote.AbstractProtocol$AbstractConnectionHandler
| 312 | run . . . . . . . . . . . . . . in org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor
| 895 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker
| 918 | run . . . . . . . . . . . . . . in ''
^ 662 | run in java.lang.Thread
任何帮助都会非常感激。
答案 0 :(得分：1)
我认为问题在于您命名域类属性的方式。 您是否尝试过以下操作？
class Clients {
String cClientId
String cFirstName
String cSurname
String cEmail
static mapping = {
id name: "cClientId", generator: "assigned"
version false
datasource "dataSourceOld"
cache usage: 'read-only'
}
static constraints = {
cClientId(maxSize: 12)
cFirstName(nullable: true, maxSize: 5)
cSurname(maxSize: 30)
cEmail(maxSize: 30)
}
}
因此，如果您按如下方式声明约束：
static constraints = {
cClientId maxSize: 12
cFirstName nullable: true, maxSize: 5
cSurname maxSize: 30
cEmail maxSize: 30
}
这是有效的;）
答案 1 :(得分：-1)
看起来Grails不会将您的客户端识别为域对象，这就是为什么所有GORM动态方法（获取，列出，查找，保存，更新......）都不起作用的原因。