org.springframework.web.bind.support.WebRequestDataBinder类的使用及代码示例

x33g5p2x  于2022-02-03 转载在 其他  
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本文整理了Java中org.springframework.web.bind.support.WebRequestDataBinder类的一些代码示例，展示了WebRequestDataBinder类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。WebRequestDataBinder类的具体详情如下：
包路径：org.springframework.web.bind.support.WebRequestDataBinder
类名称：WebRequestDataBinder

WebRequestDataBinder介绍

[英]Special org.springframework.validation.DataBinder to perform data binding from web request parameters to JavaBeans, including support for multipart files.

See the DataBinder/WebDataBinder superclasses for customization options, which include specifying allowed/required fields, and registering custom property editors.

Can also used for manual data binding in custom web controllers or interceptors that build on Spring's org.springframework.web.context.request.WebRequestabstraction: e.g. in a org.springframework.web.context.request.WebRequestInterceptorimplementation. Simply instantiate a WebRequestDataBinder for each binding process, and invoke bind with the current WebRequest as argument:

  1. MyBean myBean = new MyBean(); 
  2. // apply binder to custom target object 
  3. WebRequestDataBinder binder = new WebRequestDataBinder(myBean); 
  4. // register custom editors, if desired 
  5. binder.registerCustomEditor(...); 
  6. // trigger actual binding of request parameters 
  7. binder.bind(request); 
  8. // optionally evaluate binding errors 
  9. Errors errors = binder.getErrors(); 
  10. ...

[中]特别组织。springframework。验证。DataBinder执行从web请求参数到JavaBeans的数据绑定，包括对多部分文件的支持。
有关自定义选项，请参见DataBinder/WebDataBinder超类，其中包括指定允许/必需字段，以及注册自定义属性编辑器。
也可以用于在Spring组织上构建的自定义web控制器或拦截器中手动绑定数据。springframework。网状物上下文要求WebRequestabstraction：例如在组织中。springframework。网状物上下文要求WebRequestInterceptorimplementation。只需为每个绑定进程实例化一个WebRequestDataBinder，并以当前WebRequest作为参数调用bind：

  1. MyBean myBean = new MyBean(); 
  2. // apply binder to custom target object 
  3. WebRequestDataBinder binder = new WebRequestDataBinder(myBean); 
  4. // register custom editors, if desired 
  5. binder.registerCustomEditor(...); 
  6. // trigger actual binding of request parameters 
  7. binder.bind(request); 
  8. // optionally evaluate binding errors 
  9. Errors errors = binder.getErrors(); 
  10. ...

代码示例

代码示例来源：origin: spring-projects/spring-framework

  1. @Override
  2. public void service(HttpServletRequest request, HttpServletResponse response) {
  3.   WebRequestDataBinder binder = new WebRequestDataBinder(bean);
  4.   ServletWebRequest webRequest = new ServletWebRequest(request, response);
  5.   binder.bind(webRequest);
  6.   response.setStatus(HttpServletResponse.SC_OK);
  7. }

代码示例来源：origin: spring-projects/spring-framework

  1. /**
  2.  * Treats errors as fatal.
  3.  * <p>Use this method only if it's an error if the input isn't valid.
  4.  * This might be appropriate if all input is from dropdowns, for example.
  5.  * @throws BindException if binding errors have been encountered
  6.  */
  7. public void closeNoCatch() throws BindException {
  8.   if (getBindingResult().hasErrors()) {
  9.     throw new BindException(getBindingResult());
  10.   }
  11. }

代码示例来源：origin: spring-projects/spring-framework

  1. if (isMultipartRequest(request) && request instanceof NativeWebRequest) {
  2.   MultipartRequest multipartRequest = ((NativeWebRequest) request).getNativeRequest(MultipartRequest.class);
  3.   if (multipartRequest != null) {
  4.     bindMultipart(multipartRequest.getMultiFileMap(), mpvs);
  5.       bindParts(servletRequest, mpvs);
  6. doBind(mpvs);

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testMultipartFileAsString() {
  3.   TestBean target = new TestBean();
  4.   WebRequestDataBinder binder = new WebRequestDataBinder(target);
  5.   binder.registerCustomEditor(String.class, new StringMultipartFileEditor());
  6.   MockMultipartHttpServletRequest request = new MockMultipartHttpServletRequest();
  7.   request.addFile(new MockMultipartFile("name", "Juergen".getBytes()));
  8.   binder.bind(new ServletWebRequest(request));
  9.   assertEquals("Juergen", target.getName());
  10. }

代码示例来源：origin: spring-projects/spring-framework

  1. /**
  2.  * Extension point to create the WebDataBinder instance.
  3.  * By default this is {@code WebRequestDataBinder}.
  4.  * @param target the binding target or {@code null} for type conversion only
  5.  * @param objectName the binding target object name
  6.  * @param webRequest the current request
  7.  * @throws Exception in case of invalid state or arguments
  8.  */
  9. protected WebDataBinder createBinderInstance(
  10.     @Nullable Object target, String objectName, NativeWebRequest webRequest) throws Exception {
  11.   return new WebRequestDataBinder(target, objectName);
  12. }

代码示例来源：origin: stackoverflow.com

  1. @RequestMapping(value = "/add/{name}", method = RequestMethod.POST)
  2. public String processForm(@PathVariable String name, WebRequest request) {
  3.   //System.out.println(bean);
  5.   Object myBean = registry.lookup(name);
  6.   WebRequestDataBinder binder = new WebRequestDataBinder(myBean);
  7.   // optionnaly configure the binder
  8.   ...
  9.   // trigger actual binding of request parameters
  10.   binder.bind(request);
  11.   // optionally validate
  12.   binder.validate();
  13.   // process binding results
  14.   BindingResult result = binder.getBindingResult();
  15.   ...
  17.   return "redirect:/add/" + name;
  18. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testBindingWithNestedObjectCreationThroughAutoGrow() throws Exception {
  3.   TestBean tb = new TestBeanWithConcreteSpouse();
  4.   WebRequestDataBinder binder = new WebRequestDataBinder(tb, "person");
  5.   binder.setIgnoreUnknownFields(false);
  6.   MockHttpServletRequest request = new MockHttpServletRequest();
  7.   request.addParameter("concreteSpouse.name", "test");
  8.   binder.bind(new ServletWebRequest(request));
  9.   assertNotNull(tb.getSpouse());
  10.   assertEquals("test", tb.getSpouse().getName());
  11. }

代码示例来源：origin: spring-projects/spring-framework

  1. /**
  2.  * Extension point to bind the request to the target object.
  3.  * @param binder the data binder instance to use for the binding
  4.  * @param request the current request
  5.  */
  6. protected void bindRequestParameters(WebDataBinder binder, NativeWebRequest request) {
  7.   ((WebRequestDataBinder) binder).bind(request);
  8. }

代码示例来源：origin: org.parancoe/parancoe-web

  1. protected void doBind(NativeWebRequest webRequest, WebDataBinder binder,
  2.     boolean failOnErrors)
  3.     throws Exception {
  4.   WebRequestDataBinder requestBinder = (WebRequestDataBinder) binder;
  5.   requestBinder.bind(webRequest);
  6.   if (failOnErrors) {
  7.     requestBinder.closeNoCatch();
  8.   }
  9. }

代码示例来源：origin: spring-projects/spring-framework

  1. private void bindParts(HttpServletRequest request, MutablePropertyValues mpvs) {
  2.   try {
  3.     MultiValueMap<String, Part> map = new LinkedMultiValueMap<>();
  4.     for (Part part : request.getParts()) {
  5.       map.add(part.getName(), part);
  6.     }
  7.     map.forEach((key, values) -> {
  8.       if (values.size() == 1) {
  9.         Part part = values.get(0);
  10.         if (isBindEmptyMultipartFiles() || part.getSize() > 0) {
  11.           mpvs.add(key, part);
  12.         }
  13.       }
  14.       else {
  15.         mpvs.add(key, values);
  16.       }
  17.     });
  18.   }
  19.   catch (Exception ex) {
  20.     throw new MultipartException("Failed to get request parts", ex);
  21.   }
  22. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testMultipartFileAsStringArray() {
  3.   TestBean target = new TestBean();
  4.   WebRequestDataBinder binder = new WebRequestDataBinder(target);
  5.   binder.registerCustomEditor(String.class, new StringMultipartFileEditor());
  6.   MockMultipartHttpServletRequest request = new MockMultipartHttpServletRequest();
  7.   request.addFile(new MockMultipartFile("stringArray", "Juergen".getBytes()));
  8.   binder.bind(new ServletWebRequest(request));
  9.   assertEquals(1, target.getStringArray().length);
  10.   assertEquals("Juergen", target.getStringArray()[0]);
  11. }

代码示例来源：origin: org.springframework/spring-web

  1. /**
  2.  * Extension point to create the WebDataBinder instance.
  3.  * By default this is {@code WebRequestDataBinder}.
  4.  * @param target the binding target or {@code null} for type conversion only
  5.  * @param objectName the binding target object name
  6.  * @param webRequest the current request
  7.  * @throws Exception in case of invalid state or arguments
  8.  */
  9. protected WebDataBinder createBinderInstance(
  10.     @Nullable Object target, String objectName, NativeWebRequest webRequest) throws Exception {
  11.   return new WebRequestDataBinder(target, objectName);
  12. }

代码示例来源：origin: stackoverflow.com

  1. @RequestMapping(value = "/{name}", method = RequestMethod.POST)
  2. public String submitFormAction(@PathVariable("name") final String name, final WebRequest request, final Model model) {
  3.   final Object bean = registry.lookup(name);
  4.   final Validator validator = validatorRegistry.lookup(name);
  5.   final WebRequestDataBinder binder = new WebRequestDataBinder(bean, "bean");
  7.   binder.setValidator(validator);
  8.   binder.validate();
  9.   binder.bind(request);
  11.   final BindingResult result = binder.getBindingResult();
  13.   if (result.hasErrors()) {
  14.     model.addAttribute("name", name);
  15.     model.addAllAttributes(result.getModel());
  17.     return "form";
  18.   }
  20.   return "redirect:/" + name;
  21. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testFieldPrefixCausesFieldResetWithIgnoreUnknownFields() throws Exception {
  3.   TestBean target = new TestBean();
  4.   WebRequestDataBinder binder = new WebRequestDataBinder(target);
  5.   binder.setIgnoreUnknownFields(false);
  6.   MockHttpServletRequest request = new MockHttpServletRequest();
  7.   request.addParameter("_postProcessed", "visible");
  8.   request.addParameter("postProcessed", "on");
  9.   binder.bind(new ServletWebRequest(request));
  10.   assertTrue(target.isPostProcessed());
  11.   request.removeParameter("postProcessed");
  12.   binder.bind(new ServletWebRequest(request));
  13.   assertFalse(target.isPostProcessed());
  14. }

代码示例来源：origin: org.springframework/spring-web

  1. /**
  2.  * Extension point to bind the request to the target object.
  3.  * @param binder the data binder instance to use for the binding
  4.  * @param request the current request
  5.  */
  6. protected void bindRequestParameters(WebDataBinder binder, NativeWebRequest request) {
  7.   ((WebRequestDataBinder) binder).bind(request);
  8. }

代码示例来源：origin: org.springframework/spring-web

  1. private void bindParts(HttpServletRequest request, MutablePropertyValues mpvs) {
  2.   try {
  3.     MultiValueMap<String, Part> map = new LinkedMultiValueMap<>();
  4.     for (Part part : request.getParts()) {
  5.       map.add(part.getName(), part);
  6.     }
  7.     map.forEach((key, values) -> {
  8.       if (values.size() == 1) {
  9.         Part part = values.get(0);
  10.         if (isBindEmptyMultipartFiles() || part.getSize() > 0) {
  11.           mpvs.add(key, part);
  12.         }
  13.       }
  14.       else {
  15.         mpvs.add(key, values);
  16.       }
  17.     });
  18.   }
  19.   catch (Exception ex) {
  20.     throw new MultipartException("Failed to get request parts", ex);
  21.   }
  22. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testEnumBinding() {
  3.   EnumHolder target = new EnumHolder();
  4.   WebRequestDataBinder binder = new WebRequestDataBinder(target);
  5.   MockHttpServletRequest request = new MockHttpServletRequest();
  6.   request.addParameter("myEnum", "FOO");
  7.   binder.bind(new ServletWebRequest(request));
  8.   assertEquals(MyEnum.FOO, target.getMyEnum());
  9. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testMultipartFilesAsStringArray() {
  3.   TestBean target = new TestBean();
  4.   WebRequestDataBinder binder = new WebRequestDataBinder(target);
  5.   binder.registerCustomEditor(String.class, new StringMultipartFileEditor());
  6.   MockMultipartHttpServletRequest request = new MockMultipartHttpServletRequest();
  7.   request.addFile(new MockMultipartFile("stringArray", "Juergen".getBytes()));
  8.   request.addFile(new MockMultipartFile("stringArray", "Eva".getBytes()));
  9.   binder.bind(new ServletWebRequest(request));
  10.   assertEquals(2, target.getStringArray().length);
  11.   assertEquals("Juergen", target.getStringArray()[0]);
  12.   assertEquals("Eva", target.getStringArray()[1]);
  13. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void resolveOptional() throws Exception {
  3.   WebDataBinder dataBinder = new WebRequestDataBinder(null);
  4.   dataBinder.setConversionService(new DefaultConversionService());
  5.   WebDataBinderFactory factory = mock(WebDataBinderFactory.class);
  6.   given(factory.createBinder(this.webRequest, null, "foo")).willReturn(dataBinder);
  7.   MethodParameter param = initMethodParameter(3);
  8.   Object actual = testResolveArgument(param, factory);
  9.   assertNotNull(actual);
  10.   assertEquals(Optional.class, actual.getClass());
  11.   assertFalse(((Optional<?>) actual).isPresent());
  12.   Foo foo = new Foo();
  13.   this.webRequest.setAttribute("foo", foo, getScope());
  14.   actual = testResolveArgument(param, factory);
  15.   assertNotNull(actual);
  16.   assertEquals(Optional.class, actual.getClass());
  17.   assertTrue(((Optional<?>) actual).isPresent());
  18.   assertSame(foo, ((Optional<?>) actual).get());
  19. }

代码示例来源：origin: org.springframework/spring-web

  1. if (isMultipartRequest(request) && request instanceof NativeWebRequest) {
  2.   MultipartRequest multipartRequest = ((NativeWebRequest) request).getNativeRequest(MultipartRequest.class);
  3.   if (multipartRequest != null) {
  4.     bindMultipart(multipartRequest.getMultiFileMap(), mpvs);
  5.       bindParts(servletRequest, mpvs);
  6. doBind(mpvs);

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