@Inject 和 Enhancer.enhance(...)

我新建了一个service类:

public class DemoService {

    public void show () {
        System.out.print("hi jfinal")
    }
}

控制器代码:

@RequestMapping("/demo")
public class DemoController extends Controller {
    // 方式一 失败
    // @Inject
    // DemoService demoService;
    
    // 方式二 正常,不过下面这个方法好像过时了
    DemoService demoService = Enhancer.enhance(DemoService.class);
    
    public void index(){
        demoService.show();
    }
    
}

使用 方式一 进行注入时,当在浏览器访问路径时,报错:

java.lang.NoSuchMethodError: com.jfinal.aop.Enhancer.enhance(Ljava/lang/Class;[Lcom/jfinal/aop/Interceptor;)Ljava/lang/Object;
	at com.qyvip.libra.aop.LibraAopFactory.createObject(LibraAopFactory.java:129)
	at com.jfinal.aop.AopFactory.doGetSingleton(AopFactory.java:87)
	at com.jfinal.aop.AopFactory.doGet(AopFactory.java:65)
	at com.qyvip.libra.aop.LibraAopFactory.doInjectJFinalOrginal(LibraAopFactory.java:199)
	at com.qyvip.libra.aop.LibraAopFactory.doInject(LibraAopFactory.java:156)
	at com.jfinal.aop.AopFactory.inject(AopFactory.java:125)
	at com.jfinal.aop.Aop.inject(Aop.java:105)
	at com.qyvip.libra.web.handler.LibraActionHandler.handle(LibraActionHandler.java:75)
	at com.qyvip.libra.web.handler.LibraHandler.doHandle(LibraHandler.java:31)
	at com.qyvip.libra.web.handler.LibraHandler.handle(LibraHandler.java:19)
	at com.qyvip.libra.web.handler.LibraFilterHandler.handle(LibraFilterHandler.java:30)
	at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:89)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
	at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
	at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
	at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet.handlers.SessionRestoringHandler.handleRequest(SessionRestoringHandler.java:119)
	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
	at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
	at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:364)
	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

为啥用@Inject注解会注入失败呢。。。

com.qyvip.libra这个是公司的jar包,我看和jfinal中的类是一样的


评论区

lingdian_ah

2019-07-24 16:23

找到问题了,jar包有冲突,引入了两个版本的

happyboy

2019-07-26 09:26

你也可以用DemoService demoService = Aop.get(DemoService.class);Aop.get是最新的方式。

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