databindertests.java

spring的源代码

			public void setAsText(String text) throws IllegalArgumentException {
				setValue("list" + text);
			}
			public String getAsText() {
				return ((String) getValue()).substring(4);
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("array[0].nestedIndexedBean.list[0].name", "test1");
		pvs.addPropertyValue("array[1].nestedIndexedBean.list[1].name", "test2");
		binder.bind(pvs);
		assertEquals("listtest1", ((TestBean) tb.getArray()[0].getNestedIndexedBean().getList().get(0)).getName());
		assertEquals("test2", ((TestBean) tb.getArray()[1].getNestedIndexedBean().getList().get(1)).getName());
		assertEquals("test1", binder.getErrors().getFieldValue("array[0].nestedIndexedBean.list[0].name"));
		assertEquals("test2", binder.getErrors().getFieldValue("array[1].nestedIndexedBean.list[1].name"));
	}

	public void testDirectBindingToIndexedField() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(TestBean.class, "array", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				DerivedTestBean tb = new DerivedTestBean();
				tb.setName("array" + text);
				setValue(tb);
			}
			public String getAsText() {
				return ((TestBean) getValue()).getName();
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("array[0]", "a");
		binder.bind(pvs);
		Errors errors = binder.getErrors();
		errors.rejectValue("array[0]", "NOT_ROD", "are you sure you're not Rod?");
		errors.rejectValue("map[key1]", "NOT_ROD", "are you sure you're not Rod?");
		errors.rejectValue("map[key0]", "NOT_NULL", "should not be null");

		assertEquals("arraya", errors.getFieldValue("array[0]"));
		assertEquals(1, errors.getFieldErrorCount("array[0]"));
		assertEquals("NOT_ROD", errors.getFieldError("array[0]").getCode());
		assertEquals("NOT_ROD.tb.array[0]", errors.getFieldError("array[0]").getCodes()[0]);
		assertEquals("NOT_ROD.tb.array", errors.getFieldError("array[0]").getCodes()[1]);
		assertEquals("NOT_ROD.array[0]", errors.getFieldError("array[0]").getCodes()[2]);
		assertEquals("NOT_ROD.array", errors.getFieldError("array[0]").getCodes()[3]);
		assertEquals("NOT_ROD.org.springframework.beans.DerivedTestBean", errors.getFieldError("array[0]").getCodes()[4]);
		assertEquals("NOT_ROD", errors.getFieldError("array[0]").getCodes()[5]);
		assertEquals("arraya", errors.getFieldValue("array[0]"));

		assertEquals(1, errors.getFieldErrorCount("map[key1]"));
		assertEquals("NOT_ROD", errors.getFieldError("map[key1]").getCode());
		assertEquals("NOT_ROD.tb.map[key1]", errors.getFieldError("map[key1]").getCodes()[0]);
		assertEquals("NOT_ROD.tb.map", errors.getFieldError("map[key1]").getCodes()[1]);
		assertEquals("NOT_ROD.map[key1]", errors.getFieldError("map[key1]").getCodes()[2]);
		assertEquals("NOT_ROD.map", errors.getFieldError("map[key1]").getCodes()[3]);
		assertEquals("NOT_ROD.org.springframework.beans.TestBean", errors.getFieldError("map[key1]").getCodes()[4]);
		assertEquals("NOT_ROD", errors.getFieldError("map[key1]").getCodes()[5]);

		assertEquals(1, errors.getFieldErrorCount("map[key0]"));
		assertEquals("NOT_NULL", errors.getFieldError("map[key0]").getCode());
		assertEquals("NOT_NULL.tb.map[key0]", errors.getFieldError("map[key0]").getCodes()[0]);
		assertEquals("NOT_NULL.tb.map", errors.getFieldError("map[key0]").getCodes()[1]);
		assertEquals("NOT_NULL.map[key0]", errors.getFieldError("map[key0]").getCodes()[2]);
		assertEquals("NOT_NULL.map", errors.getFieldError("map[key0]").getCodes()[3]);
		assertEquals("NOT_NULL", errors.getFieldError("map[key0]").getCodes()[4]);
	}

	public void testDirectBindingToEmptyIndexedFieldWithRegisteredSpecificEditor() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(TestBean.class, "map[key0]", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				DerivedTestBean tb = new DerivedTestBean();
				tb.setName("array" + text);
				setValue(tb);
			}
			public String getAsText() {
				return ((TestBean) getValue()).getName();
			}
		});
		Errors errors = binder.getErrors();
		errors.rejectValue("map[key0]", "NOT_NULL", "should not be null");

		assertEquals(1, errors.getFieldErrorCount("map[key0]"));
		assertEquals("NOT_NULL", errors.getFieldError("map[key0]").getCode());
		assertEquals("NOT_NULL.tb.map[key0]", errors.getFieldError("map[key0]").getCodes()[0]);
		assertEquals("NOT_NULL.tb.map", errors.getFieldError("map[key0]").getCodes()[1]);
		assertEquals("NOT_NULL.map[key0]", errors.getFieldError("map[key0]").getCodes()[2]);
		assertEquals("NOT_NULL.map", errors.getFieldError("map[key0]").getCodes()[3]);
		// This next code is only generated because of the registered editor, using the
		// registered type of the editor as guess for the content type of the collection.
		assertEquals("NOT_NULL.org.springframework.beans.TestBean", errors.getFieldError("map[key0]").getCodes()[4]);
		assertEquals("NOT_NULL", errors.getFieldError("map[key0]").getCodes()[5]);
	}

	public void testDirectBindingToEmptyIndexedFieldWithRegisteredGenericEditor() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(TestBean.class, "map", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				DerivedTestBean tb = new DerivedTestBean();
				tb.setName("array" + text);
				setValue(tb);
			}
			public String getAsText() {
				return ((TestBean) getValue()).getName();
			}
		});
		Errors errors = binder.getErrors();
		errors.rejectValue("map[key0]", "NOT_NULL", "should not be null");

		assertEquals(1, errors.getFieldErrorCount("map[key0]"));
		assertEquals("NOT_NULL", errors.getFieldError("map[key0]").getCode());
		assertEquals("NOT_NULL.tb.map[key0]", errors.getFieldError("map[key0]").getCodes()[0]);
		assertEquals("NOT_NULL.tb.map", errors.getFieldError("map[key0]").getCodes()[1]);
		assertEquals("NOT_NULL.map[key0]", errors.getFieldError("map[key0]").getCodes()[2]);
		assertEquals("NOT_NULL.map", errors.getFieldError("map[key0]").getCodes()[3]);
		// This next code is only generated because of the registered editor, using the
		// registered type of the editor as guess for the content type of the collection.
		assertEquals("NOT_NULL.org.springframework.beans.TestBean", errors.getFieldError("map[key0]").getCodes()[4]);
		assertEquals("NOT_NULL", errors.getFieldError("map[key0]").getCodes()[5]);
	}

	public void testCustomEditorWithSubclass() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(TestBean.class, new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				DerivedTestBean tb = new DerivedTestBean();
				tb.setName("array" + text);
				setValue(tb);
			}
			public String getAsText() {
				return ((TestBean) getValue()).getName();
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("array[0]", "a");
		binder.bind(pvs);
		Errors errors = binder.getErrors();
		errors.rejectValue("array[0]", "NOT_ROD", "are you sure you're not Rod?");

		assertEquals("arraya", errors.getFieldValue("array[0]"));
		assertEquals(1, errors.getFieldErrorCount("array[0]"));
		assertEquals("NOT_ROD", errors.getFieldError("array[0]").getCode());
		assertEquals("NOT_ROD.tb.array[0]", errors.getFieldError("array[0]").getCodes()[0]);
		assertEquals("NOT_ROD.tb.array", errors.getFieldError("array[0]").getCodes()[1]);
		assertEquals("NOT_ROD.array[0]", errors.getFieldError("array[0]").getCodes()[2]);
		assertEquals("NOT_ROD.array", errors.getFieldError("array[0]").getCodes()[3]);
		assertEquals("NOT_ROD.org.springframework.beans.DerivedTestBean", errors.getFieldError("array[0]").getCodes()[4]);
		assertEquals("NOT_ROD", errors.getFieldError("array[0]").getCodes()[5]);
		assertEquals("arraya", errors.getFieldValue("array[0]"));
	}

	public void testBindToStringArrayWithArrayEditor() {
		TestBean tb = new TestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(String[].class, "stringArray", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue(StringUtils.delimitedListToStringArray(text, "-"));
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("stringArray", "a1-b2");
		binder.bind(pvs);
		assertTrue(!binder.getErrors().hasErrors());
		assertEquals(2, tb.getStringArray().length);
		assertEquals("a1", tb.getStringArray()[0]);
		assertEquals("b2", tb.getStringArray()[1]);
	}

	public void testBindToStringArrayWithComponentEditor() {
		TestBean tb = new TestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(String.class, "stringArray", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("X" + text);
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("stringArray", new String[] {"a1", "b2"});
		binder.bind(pvs);
		assertTrue(!binder.getErrors().hasErrors());
		assertEquals(2, tb.getStringArray().length);
		assertEquals("Xa1", tb.getStringArray()[0]);
		assertEquals("Xb2", tb.getStringArray()[1]);
	}

	public void testBindingErrors() {
		TestBean rod = new TestBean();
		DataBinder binder = new DataBinder(rod, "person");
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("age", "32x"));
		binder.bind(pvs);
		Errors errors = binder.getErrors();
		FieldError ageError = errors.getFieldError("age");
		assertEquals("typeMismatch", ageError.getCode());

		ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
		messageSource.setBasename("org.springframework.validation.messages1");
		String msg = messageSource.getMessage(ageError, Locale.getDefault());
		assertEquals("Field age did not have correct type", msg);

		messageSource = new ResourceBundleMessageSource();
		messageSource.setBasename("org.springframework.validation.messages2");
		msg = messageSource.getMessage(ageError, Locale.getDefault());
		assertEquals("Field Age did not have correct type", msg);

		messageSource = new ResourceBundleMessageSource();
		messageSource.setBasename("org.springframework.validation.messages3");
		msg = messageSource.getMessage(ageError, Locale.getDefault());
		assertEquals("Field Person Age did not have correct type", msg);
	}

	public void testAddAllErrors() {
		TestBean rod = new TestBean();
		DataBinder binder = new DataBinder(rod, "person");
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("age", "32x"));
		binder.bind(pvs);
		Errors errors = binder.getErrors();

		BindException errors2 = new BindException(rod, "person");
		errors.rejectValue("name", "badName");
		errors.addAllErrors(errors2);

		FieldError ageError = errors.getFieldError("age");
		assertEquals("typeMismatch", ageError.getCode());
		FieldError nameError = errors.getFieldError("name");
		assertEquals("badName", nameError.getCode());
	}

	public void testBindingWithResortedList() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		MutablePropertyValues pvs = new MutablePropertyValues();
		TestBean tb1 = new TestBean("tb1", 99);
		TestBean tb2 = new TestBean("tb2", 99);
		pvs.addPropertyValue("list[0]", tb1);
		pvs.addPropertyValue("list[1]", tb2);
		binder.bind(pvs);
		assertEquals(tb1.getName(), binder.getErrors().getFieldValue("list[0].name"));
		assertEquals(tb2.getName(), binder.getErrors().getFieldValue("list[1].name"));
		tb.getList().set(0, tb2);
		tb.getList().set(1, tb1);
		assertEquals(tb2.getName(), binder.getErrors().getFieldValue("list[0].name"));
		assertEquals(tb1.getName(), binder.getErrors().getFieldValue("list[1].name"));
	}

	public void testRejectWithoutDefaultMessage() throws Exception {
		TestBean tb = new TestBean();
		tb.setName("myName");
		tb.setAge(99);

		BindException ex = new BindException(tb, "tb");
		ex.reject("invalid");
		ex.rejectValue("age", "invalidField");

		StaticMessageSource ms = new StaticMessageSource();
		ms.addMessage("invalid", Locale.US, "general error");
		ms.addMessage("invalidField", Locale.US, "invalid field");

		assertEquals("general error", ms.getMessage(ex.getGlobalError(), Locale.US));
		assertEquals("invalid field", ms.getMessage(ex.getFieldError("age"), Locale.US));
	}

	public void testBindExceptionSerializable() throws Exception {
		SerializablePerson tb = new SerializablePerson();
		tb.setName("myName");
		tb.setAge(99);

		BindException ex = new BindException(tb, "tb");
		ex.reject("invalid", "someMessage");
		ex.rejectValue("age", "invalidField", "someMessage");

		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		ObjectOutputStream oos = new ObjectOutputStream(baos);
		oos.writeObject(ex);
		ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
		ObjectInputStream ois = new ObjectInputStream(bais);

		BindException ex2 = (BindException) ois.readObject();
		assertTrue(ex2.hasGlobalErrors());
		assertEquals("invalid", ex2.getGlobalError().getCode());
		assertTrue(ex2.hasFieldErrors("age"));
		assertEquals("invalidField", ex2.getFieldError("age").getCode());
		assertEquals(new Integer(99), ex2.getFieldValue("age"));

		ex2.rejectValue("name", "invalidField", "someMessage");
		assertTrue(ex2.hasFieldErrors("name"));
		assertEquals("invalidField", ex2.getFieldError("name").getCode());
		assertEquals("myName", ex2.getFieldValue("name"));
	}


	private static class TestBeanValidator implements Validator {

		public boolean supports(Class clazz) {
			return TestBean.class.isAssignableFrom(clazz);
		}

		public void validate(Object obj, Errors errors) {
			TestBean tb = (TestBean) obj;
			if (tb.getAge() < 32) {
				errors.rejectValue("age", "TOO_YOUNG", null, "simply too young");
			}
			if (tb.getAge() % 2 == 0) {
				errors.rejectValue("age", "AGE_NOT_ODD", null, "your age isn't odd");
			}
			if (tb.getName() == null || !tb.getName().equals("Rod")) {
				errors.rejectValue("name", "NOT_ROD", "are you sure you're not Rod?");
			}
			if (tb.getTouchy() == null || !tb.getTouchy().equals(tb.getName())) {
				errors.reject("NAME_TOUCHY_MISMATCH", "name and touchy do not match");
			}
			if (tb.getAge() == 0) {
				errors.reject("GENERAL_ERROR", new String[]{"arg"}, "msg");
			}
		}
	}


	private static class SpouseValidator implements Validator {

		public boolean supports(Class clazz) {
			return TestBean.class.isAssignableFrom(clazz);
		}

		public void validate(Object obj, Errors errors) {
			TestBean tb = (TestBean) obj;
			if (tb.getAge() < 32) {
				errors.rejectValue("age", "TOO_YOUNG", null, "simply too young");
			}
		}
	}

}