- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
我创建了一个创建和发送电子邮件的类,但它不起作用,我曾经将它放在存储库中并且一切正常,但是当我将它移动到它自己的类时,每次我尝试使用它时我都会得到 null .
我的类(class):
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailException;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;
import com.example.repository.VerificationTokenRepository;
@Component("emailOPJ")
public class EmailOPJ {
@Autowired
private JavaMailSender javaMailSender;
@Autowired
private VerificationTokenRepository verificationTokenRepository;
private String token;
private String emailDeUsuario;
private String subject;
private String url;
private User user;
public EmailOPJ() {}
public EmailOPJ(User user) {
this.user = user;
emailDeUsuario = user.getEmail();
token = UUID.randomUUID().toString();
subject = "Confirmar su registro en VUDA";
url = "http://localhost:8080/confirmarRegistro?token=" + token;
crearTokenDeVerificacion();
}
private MimeMessage ContruirEmailDeConfirmacion(){
MimeMessage mail = javaMailSender.createMimeMessage();
try {
mail.setSubject(subject);
MimeMessageHelper helper;
helper = new MimeMessageHelper(mail, false, "utf-8");
helper.setTo(emailDeUsuario);
helper.setFrom("abcde@gmail.com");
mail.setContent(getCuerpo(), "text/html");
}catch(MessagingException ex) {
System.out.println( ex.getMessage());
}
return mail;
}
public void EnviarEmailDeConfirmRegistro() throws MailException{
MimeMessage mail = ContruirEmailDeConfirmacion();
javaMailSender.send(mail);
}
private void crearTokenDeVerificacion() {
VerificationToken verificationToken = new VerificationToken(token,user);
verificationTokenRepository.save(verificationToken);
}
private String getCuerpo(){
//here i construct the message
}
}
我在存储库中调用该函数:
@Override
@Override
public void saveUser(User user) {
user.setPassword(bCryptPasswordEncoder.encode(user.getPassword()));
user.setActive(0); //por defecto no esta verificado
Role userRole = roleRepository.findByRole("USUARIO");
user.setRoles(new HashSet<Role>(Arrays.asList(userRole)));
userRepository.save(user);
try {
EmailOPJ email = new EmailOPJ(user);
email.EnviarEmailDeConfirmRegistro();
}catch(MailException e) {
System.out.println((e.getStackTrace());
}
}
我在最后一次捕获中得到了 null。但是,当我将所有内容移入存储库时工作正常,但我想保持我的存储库和我的模型松散耦合
这是星迹:
java.lang.NullPointerException: null
at com.example.model.EmailOPJ.crearTokenDeVerificacion(EmailOPJ.java:68) ~[classes/:na]
at com.example.model.EmailOPJ.<init>(EmailOPJ.java:39) ~[classes/:na]
at com.example.service.UserServiceImpl.saveUser(UserServiceImpl.java:47) ~[classes/:na]
at com.example.controller.LoginController.createNewUser(LoginController.java:71) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:121) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) ~[spring-security-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:89) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:784) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.6.jar:8.5.6]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_161]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_161]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.6.jar:8.5.6]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161]
什么是在我的类(class)中创建 setter:
public void setVerificationTokenRepository(VerificationTokenRepository verificationTokenRepository) {
this.verificationTokenRepository = verificationTokenRepository;
}
并从我的 UserserviceImpl 设置它:
email.setVerificationTokenRepository(verificationTokenRepository);
最佳答案
您正在创建 EmailOPJ 的实例,而不是让 spring 处理依赖项。因为您自己创建实例,所以您将丢失对 EmailOPJ 的所有 Autowiring 依赖项。你需要
@Autowired
EmailOPJ email;
而不是
EmailOPJ email = new EmailOPJ(user);
关于java - 尝试在 Spring Boot 中发送 MimeMessage 电子邮件时,我得到了 null,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52048306/
最近开始学习oracle和sql。 在学习的过程中,我遇到了几个问题,我的 friend 在接受采访时被问到这些问题。 SELECT * FROM Employees WHERE NULL IS N
这个问题在这里已经有了答案: Can we subtract NULL pointers? (4 个回答) 关闭 2 个月前。 是否定义了NULL - NULL? (char *)NULL - (ch
是否有推荐的方法(根据 .net Framework 指南)检查 null,例如: if (value == null) {//code1} else {//code2} 或 if (value !=
我正在尝试将值插入数据库,但出现这样的错误任何人都可以告诉我为什么该值为空,如下所示: An exception occurred while executing 'INSERT INTO perso
这个问题在这里已经有了答案: String concatenation with a null seems to nullify the entire string - is that desire
您好,我正在 Android 联系人搜索模块中工作。我正在查询下方运行。 cur = context.getContentResolver().query(ContactsContract.Data.
下面的 SQL 表定义说明了从我的 MYSQL 数据库创建表的语句之一,该数据库是由我公司的前开发人员开发的。 DROP TABLE IF EXISTS `classifieds`.`category
我主要有应用程序开发背景。在编程语言中 variable == null或 variable != null有效。 当涉及到 SQL 时,以下查询不会给出任何语法错误,但也不会返回正确的结果。 sel
我在尝试检查某些元素是否为 NULL 时遇到段错误或不。任何人都可以帮忙吗? void addEdge(int i, int j) { if (i >= 0 && j > 0)
在 SQL 服务器中考虑到以下事实:Col1 和 Col2 包含数值和 NULL 值 SELECT COALESCE(Col1,Col2) 返回一个错误:“COALESCE 的至少一个参数必须是一个不
在 SQL 服务器中考虑到以下事实:Col1 和 Col2 包含数值和 NULL 值 SELECT COALESCE(Col1,Col2) 返回一个错误:“COALESCE 的至少一个参数必须是一个不
下面查询的关系代数表达式是什么?我找不到“Is Null”的表达式。 SELECT reader.name FROM reader LEFT JOIN book_borrow ON reader.ca
我正在尝试使用三元运算符来检查值是否为 null 并返回一个表达式或另一个。将此合并到 LINQ 表达式时,我遇到的是 LINQ 表达式的 Transact-SQL 转换试图执行“column = n
我在给定的代码中看到了以下行: select(0, (fd_set *) NULL, (fd_set *) NULL, (fd_set *) NULL, &timeout); http://linux
var re = /null/g; re.test('null null'); //> true re.test('null null'); //> true re.test('null null')
这个问题在这里已经有了答案: 关闭 13 年前。 我今天避开了一场关于数据库中空值的激烈辩论。 我的观点是 null 是未指定值的极好指示符。团队中有意见的其他每个人都认为零和空字符串是可行的方法。
由于此错误,我无法在模拟器中运行我的应用: Error:null value in entry: streamOutputFolder=null 或 gradle - Error:null value
我正在尝试在 Android 应用程序中创建电影数据库,但它返回错误。知道这意味着什么吗? public Cursor returnData() { return db.query(TABLE
我一直在检查浏览器中的日期函数以及运行时间 new Date (null, null, null); 在开发工具控制台中,它给出了有效的日期 Chrome v 61 回归 Sun Dec 31 189
为什么 NA==NULL 会导致 logical (0) 而不是 FALSE? 为什么 NULL==NULL 会导致 logical(0) 而不是 TRUE? 最佳答案 NULL 是一个“零长度”对象
我是一名优秀的程序员,十分优秀!