问题描述
我正在尝试使用 thymeleaf 和 Spring boot 构建简单的搜索选项卡.这是我的代码和 html 文件.
I am trying to build simple search tab with thymeleaf and Spring boot.Here is my codes and html files.
scCountry.html
scCountry.html
<form class="form-inline" action="#" th:action="@{/search}" modelAttribute="sInput" th:object="${sInput}" method="post">
<input class="form-control mr-sm-2" type="text" placeholder="Search" th:field="*{keyWord}">
<input type="submit" value="Submit" />
<!-- <button class="btn btn-success" type="Submit" value="Submit">Search</button> -->
</form>
控制器类
@GetMapping(value="/search")
public String SearchForm(Model model) {
SearchInput sInput = new SearchInput();
model.addAttribute("sInput",sInput);
return "scCountry";
}
@PostMapping(value="/search")
public String SearchResult(@ModelAttribute("sInput") SearchInput sInput, BindingResult bindingResult, Model model) {
if (bindingResult.hasErrors()) {
return "scCountry";
}
SearchVO searchVO = null;
try {
searchVO = webServices.searchAll(sInput.getKeyWord());
} catch (TwitterException e) {
e.printStackTrace();
}
model.addAttribute("searchVO",searchVO);
return "scSearch";
}
模态类
public class SearchInput {
private String keyWord;
public String getKeyWord() {
return keyWord;
}
public void setKeyWord(String keyWord) {
this.keyWord = keyWord;
}
public SearchInput() {
}
public SearchInput(String keyWord) {
this.keyWord = keyWord;
}
}
日志
:[Ljava.lang.Byte;@3929bes :[Ljava.lang.Byte;@1995b82018-12-13 20:45:53.989 ERROR 6400 --- [nio-8080-exec-1] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-8080-exec-1] Exception processing template "scCountry": Error during execution of processor 'org.thymeleaf.spring5.processor.SpringInputGeneralFieldTagProcessor' (template: "scCountry" - line 31, col 86)
org.thymeleaf.exceptions.TemplateProcessingException:在执行处理器 'org.thymeleaf.spring5.processor.SpringInputGeneralFieldTagProcessor' 时出错(模板:scCountry" - 第 31 行，第 86 列)在 org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:117) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.ProcessorTemplateHandler.handleStandaloneElement(ProcessorTemplateHandler.java:918) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.StandaloneElementTag.beHandled(StandaloneElementTag.java:228) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.TemplateModel.process(TemplateModel.java:136) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:661) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) [thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) [thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:354) [thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31]在 org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31]在 org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31]在 org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31]在 org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31]在 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]在 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]在 org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31]在 java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]引起:java.lang.IllegalStateException:对于 bean 名称sInput"既没有 BindingResult 也没有普通目标对象可用作请求属性在 org.springframework.web.servlet.support.BindStatus.(BindStatus.java:153) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]在 org.springframework.web.servlet.support.RequestContext.getBindStatus(RequestContext.java:903) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]在 org.thymeleaf.spring5.context.webmvc.SpringWebMvcThymeleafRequestContext.getBindStatus(SpringWebMvcThymeleafRequestContext.java:227) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.util.FieldUtils.getBindStatusFromParsedExpression(FieldUtils.java:305) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:252) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:226) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.processor.AbstractSpringFieldTagProcessor.doProcess(AbstractSpringFieldTagProcessor.java:174) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]...省略了56个常用帧
org.thymeleaf.exceptions.TemplateProcessingException: Error during execution of processor 'org.thymeleaf.spring5.processor.SpringInputGeneralFieldTagProcessor' (template: "scCountry" - line 31, col 86) at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:117) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.ProcessorTemplateHandler.handleStandaloneElement(ProcessorTemplateHandler.java:918) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.StandaloneElementTag.beHandled(StandaloneElementTag.java:228) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.TemplateModel.process(TemplateModel.java:136) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:661) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) [thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) [thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:354) [thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]Caused by: java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'sInput' available as request attribute at org.springframework.web.servlet.support.BindStatus.(BindStatus.java:153) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.web.servlet.support.RequestContext.getBindStatus(RequestContext.java:903) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.thymeleaf.spring5.context.webmvc.SpringWebMvcThymeleafRequestContext.getBindStatus(SpringWebMvcThymeleafRequestContext.java:227) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.util.FieldUtils.getBindStatusFromParsedExpression(FieldUtils.java:305) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:252) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:226) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.processor.AbstractSpringFieldTagProcessor.doProcess(AbstractSpringFieldTagProcessor.java:174) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] ... 56 common frames omitted
2018-12-13 20:45:54.002
2018-12-13 20:45:54.002
(BindStatus.java:153) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]在 org.springframework.web.servlet.support.RequestContext.getBindStatus(RequestContext.java:903) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]在 org.thymeleaf.spring5.context.webmvc.SpringWebMvcThymeleafRequestContext.getBindStatus(SpringWebMvcThymeleafRequestContext.java:227) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.util.FieldUtils.getBindStatusFromParsedExpression(FieldUtils.java:305) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:252) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:226) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.spring5.processor.AbstractSpringFieldTagProcessor.doProcess(AbstractSpringFieldTagProcessor.java:174) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.ProcessorTemplateHandler.handleStandaloneElement(ProcessorTemplateHandler.java:918) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.StandaloneElementTag.beHandled(StandaloneElementTag.java:228) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.TemplateModel.process(TemplateModel.java:136) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]在 org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:661) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
(BindStatus.java:153) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.web.servlet.support.RequestContext.getBindStatus(RequestContext.java:903) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.thymeleaf.spring5.context.webmvc.SpringWebMvcThymeleafRequestContext.getBindStatus(SpringWebMvcThymeleafRequestContext.java:227) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.util.FieldUtils.getBindStatusFromParsedExpression(FieldUtils.java:305) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:252) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:226) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.processor.AbstractSpringFieldTagProcessor.doProcess(AbstractSpringFieldTagProcessor.java:174) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.ProcessorTemplateHandler.handleStandaloneElement(ProcessorTemplateHandler.java:918) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.StandaloneElementTag.beHandled(StandaloneElementTag.java:228) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.TemplateModel.process(TemplateModel.java:136) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:661) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
...
我收到错误消息:Bean 名称sInput"的 BindingResult 和普通目标对象均不可用作请求属性
I am getting the error : Neither BindingResult nor plain target object for bean name 'sInput' available as request attribute
我尝试了以下解决方案，该平台已回答:
I tried the solutions in below which is answered in this platform:
使用 thymeleaf 的 html 表单验证不起作用弹簧靴
SpringInputGeneralFieldTagProcessor 中的 Spring Thymeleaf TemplateProcessingException
如果我使用下面的表格，它就可以工作.
If I use the form like below,It is working.
<form class="form-inline" action="/search" method="post">
<input class="form-control mr-sm-2" type="text" id="keyWord" name="keyWord" value="" placeholder="Search" >
<input type="submit" value="Submit" />
<!-- <button class="btn btn-success" type="Submit" value="Submit">Search</button> -->
</form>
但我想知道这两天我错过了什么?
But I wondering what i am missing for two days?
有人可以帮我吗?
我想知道为什么 scCountry.html 中的 "th:object="${sInput}" 没有在模型中获取我将其放入同名模型中的对象?
I want to know why "th:object="${sInput}" in the scCountry.html is not fetching the object in the model which i put it in model with the same name?
推荐答案
遇到了类似的问题.这不起作用:
Was facing a similar problem.This didn't work:
这样做了:
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