Examples of org.springframework.web.method.annotation.RequestParamMethodArgumentResolver

Package org.springframework.web.method.annotation

Examples of org.springframework.web.method.annotation.RequestParamMethodArgumentResolver

org.springframework.web.method.annotation.RequestParamMethodArgumentResolver
Resolves method arguments annotated with @ {@link RequestParam}, arguments of type {@link MultipartFile} in conjunction with Spring's {@link MultipartResolver}abstraction, and arguments of type {@code javax.servlet.http.Part} in conjunctionwith Servlet 3.0 multipart requests. This resolver can also be created in default resolution mode in which simple types (int, long, etc.) not annotated with @ {@link RequestParam} are also treated as request parameters with theparameter name derived from the argument name.
If the method parameter type is {@link Map}, the name specified in the annotation is used to resolve the request parameter String value. The value is then converted to a {@link Map} via type conversion assuming a suitable{@link Converter} or {@link PropertyEditor} has been registered.Or if a request parameter name is not specified the {@link RequestParamMapMethodArgumentResolver} is used instead to provideaccess to all request parameters in the form of a map.
A {@link WebDataBinder} is invoked to apply type conversion to resolved requestheader values that don't yet match the method parameter type. @author Arjen Poutsma @author Rossen Stoyanchev @since 3.1 @see RequestParamMapMethodArgumentResolver

   */
  private List<HandlerMethodArgumentResolver> getDefaultArgumentResolvers() {
    List<HandlerMethodArgumentResolver> resolvers = new ArrayList<HandlerMethodArgumentResolver>();


    // Annotation-based argument resolution
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), false));
    resolvers.add(new RequestParamMapMethodArgumentResolver());
    resolvers.add(new PathVariableMethodArgumentResolver());
    resolvers.add(new PathVariableMapMethodArgumentResolver());
    resolvers.add(new MatrixVariableMethodArgumentResolver());
    resolvers.add(new MatrixVariableMapMethodArgumentResolver());
    resolvers.add(new ServletModelAttributeMethodProcessor(false));
    resolvers.add(new RequestResponseBodyMethodProcessor(getMessageConverters()));
    resolvers.add(new RequestPartMethodArgumentResolver(getMessageConverters()));
    resolvers.add(new RequestHeaderMethodArgumentResolver(getBeanFactory()));
    resolvers.add(new RequestHeaderMapMethodArgumentResolver());
    resolvers.add(new ServletCookieValueMethodArgumentResolver(getBeanFactory()));
    resolvers.add(new ExpressionValueMethodArgumentResolver(getBeanFactory()));


    // Type-based argument resolution
    resolvers.add(new ServletRequestMethodArgumentResolver());
    resolvers.add(new ServletResponseMethodArgumentResolver());
    resolvers.add(new HttpEntityMethodProcessor(getMessageConverters()));
    resolvers.add(new RedirectAttributesMethodArgumentResolver());
    resolvers.add(new ModelMethodProcessor());
    resolvers.add(new MapMethodProcessor());
    resolvers.add(new ErrorsMethodArgumentResolver());
    resolvers.add(new SessionStatusMethodArgumentResolver());
    resolvers.add(new UriComponentsBuilderMethodArgumentResolver());


    // Custom arguments
    if (getCustomArgumentResolvers() != null) {
      resolvers.addAll(getCustomArgumentResolvers());
    }


    // Catch-all
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), true));
    resolvers.add(new ServletModelAttributeMethodProcessor(true));


    return resolvers;
  }

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   */
  private List<HandlerMethodArgumentResolver> getDefaultInitBinderArgumentResolvers() {
    List<HandlerMethodArgumentResolver> resolvers = new ArrayList<HandlerMethodArgumentResolver>();


    // Annotation-based argument resolution
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), false));
    resolvers.add(new RequestParamMapMethodArgumentResolver());
    resolvers.add(new PathVariableMethodArgumentResolver());
    resolvers.add(new PathVariableMapMethodArgumentResolver());
    resolvers.add(new MatrixVariableMethodArgumentResolver());
    resolvers.add(new MatrixVariableMapMethodArgumentResolver());
    resolvers.add(new ExpressionValueMethodArgumentResolver(getBeanFactory()));


    // Type-based argument resolution
    resolvers.add(new ServletRequestMethodArgumentResolver());
    resolvers.add(new ServletResponseMethodArgumentResolver());


    // Custom arguments
    if (getCustomArgumentResolvers() != null) {
      resolvers.addAll(getCustomArgumentResolvers());
    }


    // Catch-all
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), true));


    return resolvers;
  }

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   */
  private List<HandlerMethodArgumentResolver> getDefaultArgumentResolvers() {
    List<HandlerMethodArgumentResolver> resolvers = new ArrayList<HandlerMethodArgumentResolver>();


    // Annotation-based argument resolution
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), false));
    resolvers.add(new RequestParamMapMethodArgumentResolver());
    resolvers.add(new PathVariableMethodArgumentResolver());
    resolvers.add(new ServletModelAttributeMethodProcessor(false));
    resolvers.add(new RequestResponseBodyMethodProcessor(getMessageConverters()));
    resolvers.add(new RequestPartMethodArgumentResolver(getMessageConverters()));
    resolvers.add(new RequestHeaderMethodArgumentResolver(getBeanFactory()));
    resolvers.add(new RequestHeaderMapMethodArgumentResolver());
    resolvers.add(new ServletCookieValueMethodArgumentResolver(getBeanFactory()));
    resolvers.add(new ExpressionValueMethodArgumentResolver(getBeanFactory()));


    // Type-based argument resolution
    resolvers.add(new ServletRequestMethodArgumentResolver());
    resolvers.add(new ServletResponseMethodArgumentResolver());
    resolvers.add(new HttpEntityMethodProcessor(getMessageConverters()));
    resolvers.add(new RedirectAttributesMethodArgumentResolver());
    resolvers.add(new ModelMethodProcessor());
    resolvers.add(new MapMethodProcessor());
    resolvers.add(new ErrorsMethodArgumentResolver());
    resolvers.add(new SessionStatusMethodArgumentResolver());
    resolvers.add(new UriComponentsBuilderMethodArgumentResolver());


    // Custom arguments
    if (getCustomArgumentResolvers() != null) {
      resolvers.addAll(getCustomArgumentResolvers());
    }


    // Catch-all
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), true));
    resolvers.add(new ServletModelAttributeMethodProcessor(true));


    return resolvers;
  }

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   */
  private List<HandlerMethodArgumentResolver> getDefaultInitBinderArgumentResolvers() {
    List<HandlerMethodArgumentResolver> resolvers = new ArrayList<HandlerMethodArgumentResolver>();


    // Annotation-based argument resolution
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), false));
    resolvers.add(new RequestParamMapMethodArgumentResolver());
    resolvers.add(new PathVariableMethodArgumentResolver());
    resolvers.add(new ExpressionValueMethodArgumentResolver(getBeanFactory()));


    // Type-based argument resolution
    resolvers.add(new ServletRequestMethodArgumentResolver());
    resolvers.add(new ServletResponseMethodArgumentResolver());


    // Custom arguments
    if (getCustomArgumentResolvers() != null) {
      resolvers.addAll(getCustomArgumentResolvers());
    }


    // Catch-all
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), true));
    
    return resolvers;
  }

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   */
  private List<HandlerMethodArgumentResolver> getDefaultArgumentResolvers() {
    List<HandlerMethodArgumentResolver> resolvers = new ArrayList<HandlerMethodArgumentResolver>();


    // Annotation-based argument resolution
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), false));
    resolvers.add(new RequestParamMapMethodArgumentResolver());
    resolvers.add(new PathVariableMethodArgumentResolver());
    resolvers.add(new PathVariableMapMethodArgumentResolver());
    resolvers.add(new MatrixVariableMethodArgumentResolver());
    resolvers.add(new MatrixVariableMapMethodArgumentResolver());
    resolvers.add(new ServletModelAttributeMethodProcessor(false));
    resolvers.add(new RequestResponseBodyMethodProcessor(getMessageConverters()));
    resolvers.add(new RequestPartMethodArgumentResolver(getMessageConverters()));
    resolvers.add(new RequestHeaderMethodArgumentResolver(getBeanFactory()));
    resolvers.add(new RequestHeaderMapMethodArgumentResolver());
    resolvers.add(new ServletCookieValueMethodArgumentResolver(getBeanFactory()));
    resolvers.add(new ExpressionValueMethodArgumentResolver(getBeanFactory()));


    // Type-based argument resolution
    resolvers.add(new ServletRequestMethodArgumentResolver());
    resolvers.add(new ServletResponseMethodArgumentResolver());
    resolvers.add(new HttpEntityMethodProcessor(getMessageConverters()));
    resolvers.add(new RedirectAttributesMethodArgumentResolver());
    resolvers.add(new ModelMethodProcessor());
    resolvers.add(new MapMethodProcessor());
    resolvers.add(new ErrorsMethodArgumentResolver());
    resolvers.add(new SessionStatusMethodArgumentResolver());
    resolvers.add(new UriComponentsBuilderMethodArgumentResolver());


    // Custom arguments
    if (getCustomArgumentResolvers() != null) {
      resolvers.addAll(getCustomArgumentResolvers());
    }


    // Catch-all
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), true));
    resolvers.add(new ServletModelAttributeMethodProcessor(true));


    return resolvers;
  }

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   */
  private List<HandlerMethodArgumentResolver> getDefaultInitBinderArgumentResolvers() {
    List<HandlerMethodArgumentResolver> resolvers = new ArrayList<HandlerMethodArgumentResolver>();


    // Annotation-based argument resolution
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), false));
    resolvers.add(new RequestParamMapMethodArgumentResolver());
    resolvers.add(new PathVariableMethodArgumentResolver());
    resolvers.add(new PathVariableMapMethodArgumentResolver());
    resolvers.add(new MatrixVariableMethodArgumentResolver());
    resolvers.add(new MatrixVariableMapMethodArgumentResolver());
    resolvers.add(new ExpressionValueMethodArgumentResolver(getBeanFactory()));


    // Type-based argument resolution
    resolvers.add(new ServletRequestMethodArgumentResolver());
    resolvers.add(new ServletResponseMethodArgumentResolver());


    // Custom arguments
    if (getCustomArgumentResolvers() != null) {
      resolvers.addAll(getCustomArgumentResolvers());
    }


    // Catch-all
    resolvers.add(new RequestParamMethodArgumentResolver(getBeanFactory(), true));


    return resolvers;
  }

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    fail("Expected exception");
  }


  @Test
  public void invokeAndHandle_DynamicReturnValue() throws Exception {
    this.argumentResolvers.addResolver(new RequestParamMethodArgumentResolver(null, false));
    this.returnValueHandlers.addHandler(new ViewMethodReturnValueHandler());
    this.returnValueHandlers.addHandler(new ViewNameMethodReturnValueHandler());


    // Invoke without a request parameter (String return value)
    ServletInvocableHandlerMethod handlerMethod = getHandlerMethod(new Handler(), "dynamicReturnValue", String.class);

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  @Test
  public void supportsParameter() {


    List<HandlerMethodArgumentResolver> resolvers = new ArrayList<HandlerMethodArgumentResolver>();
    resolvers.add(new RequestParamMethodArgumentResolver(false));
    resolvers.add(new RequestHeaderMethodArgumentResolver(null));
    resolvers.add(new RequestParamMethodArgumentResolver(true));


    Method method = ClassUtils.getMethod(this.getClass(), "handleRequest", String.class, String.class, String.class);


    CompositeUriComponentsContributor contributor = new CompositeUriComponentsContributor(resolvers);
    assertTrue(contributor.supportsParameter(new MethodParameter(method, 0)));

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      return;
    }
    this.initBinderArgumentResolvers = new HandlerMethodArgumentResolverComposite();


    // Annotation-based resolvers
    this.initBinderArgumentResolvers.addResolver(new RequestParamMethodArgumentResolver(this.beanFactory, false));
    this.initBinderArgumentResolvers.addResolver(new RequestParamMapMethodArgumentResolver());
    this.initBinderArgumentResolvers.addResolver(new PathVariableMethodArgumentResolver());
    this.initBinderArgumentResolvers.addResolver(new ExpressionValueMethodArgumentResolver(this.beanFactory));


    // Custom resolvers
    this.initBinderArgumentResolvers.addResolvers(this.customArgumentResolvers);


    // Type-based resolvers
    this.initBinderArgumentResolvers.addResolver(new ServletRequestMethodArgumentResolver());
    this.initBinderArgumentResolvers.addResolver(new ServletResponseMethodArgumentResolver());


    // Default-mode resolution
    this.initBinderArgumentResolvers.addResolver(new RequestParamMethodArgumentResolver(this.beanFactory, true));
  }

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