thymeleafjava:如何将输入字段从html页面发送到控制器的请求参数
我要更新帐户。指定帐户的客户。 但是我在提交“account\u update.html”表单时出错
事实上,在“account\u update.html”中,用户必须使用“account.client.clientMail”字段更新给定帐户的客户端
一旦用户提交了“account\u update.html”表单,程序应该将表单中的“account.id”和新的“account.clientMail”发送到conroller方法“updateAccount”(@PostMapping(“/account/updateAccount”))的requestParameter。然后控制器“updateAccount”读取相应的新客户端(使用accountMail),然后更新该帐户的客户端
但是我有下面的错误,看起来requestParameters是空的
21455调试o.s.web。servlet。DispatcherServlet-POST“/account/updateAccount?accountId=null&;accountMail=null”,参数={masked}
帐户。java
public class Account {
@Id
private String accountId;
@ManyToOne
@JoinColumn(name="client_mail")
@NotNull
Client client;
}
客户端。java
public class Client {
@Id
String clientMail;
@OneToMany(
fetch=FetchType.LAZY,
mappedBy = "client",
cascade = CascadeType.ALL
)
List<Account> accounts;
}
AccountController。java
@PostMapping("/account/updateAccount")
public String updateAccount(
@RequestParam(name = "accountId") String accountId, @RequestParam(name = "accountMail") String accountMail) {
Client client = clientService.getClientByClientMail(accountMail);
if(client == null){
throw new RuntimeException("No client for this mail");
}
Account account= accountService.getAccountByAccountId(accountId);
account.setClient(client);
accountService.saveAccount(account);
return "redirect:/account";
}
帐户更新。html
<form th:action="@{'/account/updateAccount' + '?accountId=' + ${accountIdCurrent} + '&accountMail=' + ${accountMailNew}}"
th:object="${account}"
method="POST">
<label> Account ID </label>
<input type="text" th:name="accountIdCurrent" th:field="*{accountId}"
placeholder="Account Mail" class="form-control mb-4 col-4"
th:readonly="true"
>
<label> Client </label>
<input type="text" th:name="accountMailNew" th:field="*{client.clientMail}"
placeholder="Account Mail" class="form-control mb-4 col-4">
<button type="submit" class="btn btn-info col-2"> Update Account</button>
</form>
21455 DEBUG o.s.web.servlet.DispatcherServlet - POST "/account/updateAccount?accountId=null&accountMail=null", parameters={masked}
21456 DEBUG o.s.w.s.m.m.a.RequestMappingHandlerMapping - Mapped to com.paymybuddy.moneytransfert.controller.AccountController#updateAccount(String, String)
21456 DEBUG o.s.o.j.s.OpenEntityManagerInViewInterceptor - Opening JPA EntityManager in OpenEntityManagerInViewInterceptor
21468 DEBUG o.s.o.j.s.OpenEntityManagerInViewInterceptor - Closing JPA EntityManager in OpenEntityManagerInViewInterceptor
21469 DEBUG o.s.web.servlet.DispatcherServlet - Failed to complete request: java.lang.StringIndexOutOfBoundsException: begin 0, end 5, length 4
21470 ERROR o.a.c.c.C.[.[.[.[dispatcherServlet] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.StringIndexOutOfBoundsException: begin 0, end 5, length 4] with root cause
java.lang.StringIndexOutOfBoundsException: begin 0, end 5, length 4
at java.base/java.lang.String.checkBoundsBeginEnd(String.java:3319)
at java.base/java.lang.String.substring(String.java:1874)
at com.paymybuddy.moneytransfert.controller.AccountController.updateAccount(AccountController.java:97)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:829)
共 (0) 个答案