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我目前正在試用Spring Boot，並且已經用Spring Boot和Thymeleaf開發了一些更小的類似CRUD的應用程序。春季靴子和形式Thymeleaf。從模板訪問對象屬性
這裏我控制器
@Controller
public class Home {
@RequestMapping(value="/", method=RequestMethod.GET)
public String index(Post post) {
return "index";
}
@RequestMapping(value = "/", method = RequestMethod.POST)
public String addNewPost(@Valid Post post, BindingResult bindingResult, Model model) {
if (bindingResult.hasErrors()) {
return "index";
}
model.addAttribute("title", post.getTitle());
model.addAttribute("content", post.getContent());
return "result";
}
}
我的index.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Spring Boot and Thymeleaf example</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h3>Spring Boot and Thymeleaf, part 2 - forms</h3>
<form action="#" th:action="@{/}" th:object="${post}" method="post">
<table>
<tr>
<td>Title:</td>
<td><input type="text" th:field="*{post}" /></td>
<td th:if="${#fields.hasErrors('title')}" th:errors="*{title}">Title error message</td>
</tr>
<tr>
<td>Content:</td>
<td><input type="text" th:field="*{post}" /></td>
<td th:if="${#fields.hasErrors('content')}" th:errors="*{content}">Content error message</td>
</tr>
<tr>
<td><button type="submit">Submit post</button></td>
</tr>
</table>
</form>
</body>
</html>
我不知道，如果不是由一個增加的對象後一個的每個屬性我可以添加對象本身。
我已經試過這
@Controller
public class Home {
@RequestMapping(value="/", method=RequestMethod.GET)
public String index(Post post) {
return "index";
}
@RequestMapping(value = "/", method = RequestMethod.POST)
public String addNewPost(@Valid Post post, BindingResult bindingResult, Model model) {
if (bindingResult.hasErrors()) {
return "index";
}
model.addAttribute("post", post);
return "result";
}
}
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Spring Boot and Thymeleaf example</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h3>Spring Boot and Thymeleaf, part 2 - forms</h3>
<form action="#" th:action="@{/}" th:object="${post}" method="post">
<table>
<tr>
<td>Title:</td>
<td><input type="text" th:field="*{title}" /></td>
<td th:if="${#fields.hasErrors('title')}" th:errors="*{title}">Title error message</td>
</tr>
<tr>
<td>Content:</td>
<td><input type="text" th:field="*{content}" /></td>
<td th:if="${#fields.hasErrors('content')}" th:errors="*{content}">Content error message</td>
</tr>
<tr>
<td><button type="submit">Submit post</button></td>
</tr>
</table>
</form>
</body>
</html>
但後來我得到這個錯誤：
org.springframework.beans.NotReadablePropertyException: Invalid property 'post' of bean class [com.jvmhub.springboot.form.Post]: Bean property 'post' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:731)
at org.springframework.beans.BeanWrapperImpl.getNestedBeanWrapper(BeanWrapperImpl.java:572)
at org.springframework.beans.BeanWrapperImpl.getBeanWrapperForPropertyPath(BeanWrapperImpl.java:549)
at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:720)
at org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue(AbstractPropertyBindingResult.java:99)
at org.springframework.validation.AbstractBindingResult.getFieldValue(AbstractBindingResult.java:229)
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
at org.thymeleaf.spring4.util.FieldUtils.getBindStatusFromParsedExpression(FieldUtils.java:396)
at org.thymeleaf.spring4.util.FieldUtils.getBindStatus(FieldUtils.java:323)
at org.thymeleaf.spring4.util.FieldUtils.getBindStatus(FieldUtils.java:289)
at org.thymeleaf.spring4.processor.attr.AbstractSpringFieldAttrProcessor.processAttribute(AbstractSpringFieldAttrProcessor.java:98)
at org.thymeleaf.processor.attr.AbstractAttrProcessor.doProcess(AbstractAttrProcessor.java:87)
at org.thymeleaf.processor.AbstractProcessor.process(AbstractProcessor.java:212)
at org.thymeleaf.dom.Node.applyNextProcessor(Node.java:1017)
at org.thymeleaf.dom.Node.processNode(Node.java:972)
at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695)
at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668)
at org.thymeleaf.dom.Node.processNode(Node.java:990)
at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695)
at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668)
at org.thymeleaf.dom.Node.processNode(Node.java:990)
at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695)
at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668)
at org.thymeleaf.dom.Node.processNode(Node.java:990)
at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695)
at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668)
at org.thymeleaf.dom.Node.processNode(Node.java:990)
at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695)
at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668)
at org.thymeleaf.dom.Node.processNode(Node.java:990)
at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695)
at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668)
at org.thymeleaf.dom.Node.processNode(Node.java:990)
at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695)
at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668)
at org.thymeleaf.dom.Node.processNode(Node.java:990)
at org.thymeleaf.dom.Document.process(Document.java:93)
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1155)
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060)
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011)
at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335)
at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1244)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)