下面列出了怎么用org.springframework.web.servlet.view.json.MappingJackson2JsonView的API类实例代码及写法，或者点击链接到github查看源代码。
/**
* 调用HandlerMethod方法，并返回json视图
* @param request
* @param response
* @param handlerMethod
* @return
*/
@Override
protected ModelAndView handleInternal(HttpServletRequest request, HttpServletResponse response, HandlerMethod handlerMethod) {
Map<String, Object> data = Maps.newHashMap();
data.put("service", handlerMethod.getBeanType().getSimpleName());
data.put("method", handlerMethod.getMethod().getName());
Stopwatch stopwatch = Stopwatch.createStarted();
try {
// 调用HandleMethod方法
handlerMethod.getMethod().invoke(handlerMethod.getBean());
stopwatch.stop();
data.put("result", "success");
}catch (Exception e){
data.put("result", "error");
data.put("exception", e.toString());
}finally {
data.put("cost", stopwatch.elapsed(TimeUnit.MILLISECONDS) + "ms");
}
// 返回Json视图
return new ModelAndView(new MappingJackson2JsonView(), data);
}
@Override
public ModelAndView resolveException(HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse, Object o, Exception e) {
LOGGER.error("rest error:", e);
ModelAndView modelAndView = new ModelAndView();
try {
ResultInfo resultInfo = new ResultInfo().setStatus(ResultStatus.ERROR.getCode())
.setMsg(ResultInfo.MSG_ERROR);
Map<String, Object> attr = JSON.parseObject(JSON.toJSONString(resultInfo), Map.class);
MappingJackson2JsonView view = new MappingJackson2JsonView();
view.setAttributesMap(attr);
modelAndView.setView(view);
} catch (Exception e1) {
e1.printStackTrace();
}
return modelAndView;
}
@RequestMapping(value = "get_channel", method = RequestMethod.GET)
public @ResponseBody
ModelAndView getChannel(HttpSession session, HttpServletRequest request){
ServletContext context = session.getServletContext();
Integer subFlag = (Integer)request.getSession().getAttribute("sub_flag");
if(subFlag == null){
session.setAttribute("sub_flag", 1);
context.setAttribute("onlineCount", (Integer)context.getAttribute("onlineCount") - 1);
}
Map<String, Object> result = new HashMap();
result.put("msg", "success");
result.put("rst", 0);
Integer channel = (Integer) context.getAttribute("use_channel");
if (channel == null){
channel = 0;
}
result.put("data", channel);
return new ModelAndView(new MappingJackson2JsonView(), result);
}
public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler,
Exception ex) {
ModelAndView mv = new ModelAndView();
MappingJackson2JsonView view = new MappingJackson2JsonView();
Map<String, Object> attributes = new HashMap();
if (ex instanceof MaxUploadSizeExceededException) {
attributes.put("code", ResultCode.C403.code);
attributes.put("msg", "Maximum upload size of " + ((MaxUploadSizeExceededException) ex).getMaxUploadSize() + " bytes exceeded");
logger.warn(ex.getMessage());
} else {
attributes.put("code", ResultCode.C500.code);
attributes.put("msg", ResultCode.C500.desc);
logger.error("Internal server error", ex);
}
view.setAttributesMap(attributes);
mv.setView(view);
return mv;
}
@Bean
public ViewResolver contentNegotiatingViewResolver() {
log.debug("Configuring the ContentNegotiatingViewResolver");
ContentNegotiatingViewResolver viewResolver = new ContentNegotiatingViewResolver();
List<ViewResolver> viewResolvers = new ArrayList<ViewResolver>();
UrlBasedViewResolver urlBasedViewResolver = new UrlBasedViewResolver();
urlBasedViewResolver.setViewClass(JstlView.class);
urlBasedViewResolver.setPrefix("/WEB-INF/pages/");
urlBasedViewResolver.setSuffix(".jsp");
viewResolvers.add(urlBasedViewResolver);
viewResolver.setViewResolvers(viewResolvers);
List<View> defaultViews = new ArrayList<View>();
defaultViews.add(new MappingJackson2JsonView());
viewResolver.setDefaultViews(defaultViews);
return viewResolver;
}
@Override
public ModelAndView resolveException(HttpServletRequest request,
HttpServletResponse response, Object handler, Exception e) {
// log记录异常
LOGGER.error(e.getMessage(), e);
// 非控制器请求照成的异常
if (!(handler instanceof HandlerMethod)) {
return new ModelAndView("error/500");
}
HandlerMethod handlerMethod = (HandlerMethod) handler;
if (WebUtils.isAjax(handlerMethod)) {
Result result = new Result();
result.setMsg(e.getMessage());
MappingJackson2JsonView view = new MappingJackson2JsonView();
view.setObjectMapper(jacksonObjectMapper);
view.setContentType("text/html;charset=UTF-8");
return new ModelAndView(view, BeanUtils.toMap(result));
}
// 页面指定状态为500，便于上层的resion或者nginx的500页面跳转，由于error/500不适合对用户展示
// response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return new ModelAndView("error/500").addObject("error", e.getMessage());
}
@Override
public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception e) {
e.printStackTrace();
String messageStr = null;
if (e instanceof BizException) {
BizException bz = (BizException) e;
messageStr = bz.getMessage();
}
if (messageStr == null || messageStr.trim().length() == 0) {
messageStr = "系统异常";
}
RestResponse restR = new RestResponse();
restR.setCode(-1);
restR.setMessage(messageStr);
if (HttpRequestUtils.isAjax(request)) {
Map model = BeanMapConvertUtil.convertBean2Map(restR);
if (logger.isInfoEnabled()) {
logger.info(">>>>>resolveException ajax model: " + model);
}
return new ModelAndView(new MappingJackson2JsonView(), model);
}
return new ModelAndView("500", "restR", restR);
}
/**
* 获取其它异常。包括500
*
* @param e
* @return
* @throws Exception
*/
@ExceptionHandler(value = Exception.class)
public ModelAndView defaultErrorHandler(HttpServletRequest request,
HttpServletResponse response,
Exception e, Model model) throws IOException {
e.printStackTrace();
if (isAjax(request)) {
ModelAndView mav = new ModelAndView();
MappingJackson2JsonView view = new MappingJackson2JsonView();
Map<String, Object> attributes = new HashMap<String, Object>();
if (e instanceof UnauthorizedException) {
attributes.put("msg", "没有权限");
} else {
attributes.put("msg", e.getMessage());
}
attributes.put("code", "0");
view.setAttributesMap(attributes);
mav.setView(view);
return mav;
}
if (e instanceof UnauthorizedException) {
//请登录
log.error("无权访问", e);
return new ModelAndView("common/error/403");
}
//其他异常
String message = e.getMessage();
model.addAttribute("code", 500);
model.addAttribute("message", message);
return new ModelAndView("common/error/500");
}
@RequestMapping
@JsonView(MyJacksonView2.class)
public ResponseEntity<JacksonViewBean> handleResponseEntity() {
JacksonViewBean bean = new JacksonViewBean();
bean.setWithView1("with");
bean.setWithView2("with");
bean.setWithoutView("without");
ModelAndView mav = new ModelAndView(new MappingJackson2JsonView());
mav.addObject("bean", bean);
return new ResponseEntity<>(bean, HttpStatus.OK);
}
@Test
public void contentNegotiation() {
MappingJackson2JsonView view = new MappingJackson2JsonView();
this.registry.enableContentNegotiation(view);
ContentNegotiatingViewResolver resolver = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view), resolver.getDefaultViews());
assertEquals(Ordered.HIGHEST_PRECEDENCE, this.registry.getOrder());
}
@Test
public void contentNegotiationAddsDefaultViewRegistrations() {
MappingJackson2JsonView view1 = new MappingJackson2JsonView();
this.registry.enableContentNegotiation(view1);
ContentNegotiatingViewResolver resolver1 = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view1), resolver1.getDefaultViews());
MarshallingView view2 = new MarshallingView();
this.registry.enableContentNegotiation(view2);
ContentNegotiatingViewResolver resolver2 = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view1, view2), resolver2.getDefaultViews());
assertSame(resolver1, resolver2);
}
@Test
public void testJsonOnly() throws Exception {
standaloneSetup(new PersonController()).setSingleView(new MappingJackson2JsonView()).build()
.perform(get("/person/Corea"))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(jsonPath("$.person.name").value("Corea"));
}
@RequestMapping
@JsonView(MyJacksonView2.class)
public ResponseEntity<JacksonViewBean> handleResponseEntity() {
JacksonViewBean bean = new JacksonViewBean();
bean.setWithView1("with");
bean.setWithView2("with");
bean.setWithoutView("without");
ModelAndView mav = new ModelAndView(new MappingJackson2JsonView());
mav.addObject("bean", bean);
return new ResponseEntity<>(bean, HttpStatus.OK);
}
@Test
public void contentNegotiation() {
MappingJackson2JsonView view = new MappingJackson2JsonView();
this.registry.enableContentNegotiation(view);
ContentNegotiatingViewResolver resolver = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view), resolver.getDefaultViews());
assertEquals(Ordered.HIGHEST_PRECEDENCE, this.registry.getOrder());
}
@Test
public void contentNegotiationAddsDefaultViewRegistrations() {
MappingJackson2JsonView view1 = new MappingJackson2JsonView();
this.registry.enableContentNegotiation(view1);
ContentNegotiatingViewResolver resolver1 = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view1), resolver1.getDefaultViews());
MarshallingView view2 = new MarshallingView();
this.registry.enableContentNegotiation(view2);
ContentNegotiatingViewResolver resolver2 = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view1, view2), resolver2.getDefaultViews());
assertSame(resolver1, resolver2);
}
@Test
public void testJsonOnly() throws Exception {
standaloneSetup(new PersonController()).setSingleView(new MappingJackson2JsonView()).build()
.perform(get("/person/Corea"))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(jsonPath("$.person.name").value("Corea"));
}
@Test
void testGetUnknownSubtypes() {
assertThat(getSubtype(GroovyMarkupView.class.getName())).isEqualTo("GroovyMarkup");
assertThat(getSubtype(FreeMarkerView.class.getName())).isEqualTo("FreeMarker");
assertThat(getSubtype(MappingJackson2JsonView.class.getName())).isEqualTo("MappingJackson2Json");
assertThat(getSubtype(JadeView.class.getName())).isEqualTo("Jade");
assertThat(getSubtype(InternalResourceView.class.getName())).isEqualTo("InternalResource");
assertThat(getSubtype(ThymeleafView.class.getName())).isEqualTo("Thymeleaf");
}
@RequestMapping(value = "set_channel", method = RequestMethod.GET)
public @ResponseBody
ModelAndView setChannel(@RequestParam("use_channel")Integer channel, HttpSession session){
ServletContext context = session.getServletContext();
Map<String, Object> result = new HashMap();
result.put("msg", "success");
result.put("rst", 0);
result.put("data", channel);
context.setAttribute("use_channel", channel);
return new ModelAndView(new MappingJackson2JsonView(), result);
}
@Override
public ModelAndView errorHtml(HttpServletRequest request, HttpServletResponse response) {
Map<String, Object> body = getErrorAttributes(request, isIncludeStackTrace(request, MediaType.ALL));
HttpStatus status = getStatus(request);
response.setStatus(status.value());
MappingJackson2JsonView view = new MappingJackson2JsonView();
view.setObjectMapper(JsonUtil.getInstance());
view.setContentType(MediaType.APPLICATION_JSON_UTF8_VALUE);
return new ModelAndView(view, body);
}
@Override
public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) {
logger.info(httpServletRequest.getRequestURI()+"Exception:",e);
ModelAndView modelAndView = new ModelAndView(new MappingJackson2JsonView());
modelAndView.addObject("status",Const.ResponseCode.ERROR);
modelAndView.addObject("msg","接口异常,详情请查看日志中的异常信息");
modelAndView.addObject("data",e.toString());
return modelAndView;
}
@RequestMapping
@JsonView(MyJacksonView2.class)
public ResponseEntity<JacksonViewBean> handleResponseEntity() {
JacksonViewBean bean = new JacksonViewBean();
bean.setWithView1("with");
bean.setWithView2("with");
bean.setWithoutView("without");
ModelAndView mav = new ModelAndView(new MappingJackson2JsonView());
mav.addObject("bean", bean);
return new ResponseEntity<JacksonViewBean>(bean, HttpStatus.OK);
}
@Test
public void contentNegotiation() {
MappingJackson2JsonView view = new MappingJackson2JsonView();
this.registry.enableContentNegotiation(view);
ContentNegotiatingViewResolver resolver = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view), resolver.getDefaultViews());
assertEquals(Ordered.HIGHEST_PRECEDENCE, this.registry.getOrder());
}
@Test
public void contentNegotiationAddsDefaultViewRegistrations() {
MappingJackson2JsonView view1 = new MappingJackson2JsonView();
this.registry.enableContentNegotiation(view1);
ContentNegotiatingViewResolver resolver1 = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view1), resolver1.getDefaultViews());
MarshallingView view2 = new MarshallingView();
this.registry.enableContentNegotiation(view2);
ContentNegotiatingViewResolver resolver2 = checkAndGetResolver(ContentNegotiatingViewResolver.class);
assertEquals(Arrays.asList(view1, view2), resolver2.getDefaultViews());
assertSame(resolver1, resolver2);
}
@Test
public void testJsonOnly() throws Exception {
standaloneSetup(new PersonController()).setSingleView(new MappingJackson2JsonView()).build()
.perform(get("/person/Corea"))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(jsonPath("$.person.name").value("Corea"));
}
@Test
public void testContentNegotiation() throws Exception {
Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
marshaller.setClassesToBeBound(Person.class);
List<View> viewList = new ArrayList<View>();
viewList.add(new MappingJackson2JsonView());
viewList.add(new MarshallingView(marshaller));
ContentNegotiationManager manager = new ContentNegotiationManager(
new HeaderContentNegotiationStrategy(), new FixedContentNegotiationStrategy(MediaType.TEXT_HTML));
ContentNegotiatingViewResolver cnViewResolver = new ContentNegotiatingViewResolver();
cnViewResolver.setDefaultViews(viewList);
cnViewResolver.setContentNegotiationManager(manager);
cnViewResolver.afterPropertiesSet();
MockMvc mockMvc =
standaloneSetup(new PersonController())
.setViewResolvers(cnViewResolver, new InternalResourceViewResolver())
.build();
mockMvc.perform(get("/person/Corea"))
.andExpect(status().isOk())
.andExpect(model().size(1))
.andExpect(model().attributeExists("person"))
.andExpect(forwardedUrl("person/show"));
mockMvc.perform(get("/person/Corea").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(jsonPath("$.person.name").value("Corea"));
mockMvc.perform(get("/person/Corea").accept(MediaType.APPLICATION_XML))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_XML))
.andExpect(xpath("/person/name/text()").string(equalTo("Corea")));
}
/**
* Reusable static method for generating a ModelAndView that will be serialized to a JSON representation of the
* DefaultErrorContractDTO.
*
* @return A ModelAndView that will be serialized to a JSON representation of the DefaultErrorContractDTO. (NOTE:
* make sure the DefaultErrorContractDTO is FULLY populated before calling this method! Changes to the
* DefaultErrorContractDTO after calling this method may not be reflected in the returned ModelAndView).
*/
public ModelAndView generateModelAndViewForErrorResponse(
DefaultErrorContractDTO errorContractDTO, int httpStatusCode, Collection<ApiError> rawFilteredApiErrors,
Throwable originalException, RequestInfoForLogging request
) {
MappingJackson2JsonView view = new MappingJackson2JsonView();
view.setExtractValueFromSingleKeyModel(true);
view.setObjectMapper(getObjectMapperForJsonErrorResponseSerialization(
errorContractDTO, httpStatusCode, rawFilteredApiErrors, originalException, request
));
ModelAndView mv = new ModelAndView(view);
mv.addObject(errorContractDTO);
return mv;
}
@Test
public void generateLastDitchFallbackErrorResponseInfo_returns_expected_value() throws JsonProcessingException {
// given
Exception ex = new Exception("kaboom");
RequestInfoForLogging reqMock = mock(RequestInfoForLogging.class);
String errorId = UUID.randomUUID().toString();
Map<String, List<String>> headersMap = MapBuilder.builder("error_uid", singletonList(errorId)).build();
ApiError expectedGenericError = testProjectApiErrors.getGenericServiceError();
int expectedHttpStatusCode = expectedGenericError.getHttpStatusCode();
Map<String, List<String>> expectedHeadersMap = new HashMap<>(headersMap);
String expectedBodyPayload = JsonUtilWithDefaultErrorContractDTOSupport.writeValueAsString(
new DefaultErrorContractDTO(errorId, singletonList(expectedGenericError))
);
// when
ErrorResponseInfo<ModelAndView> response = handlerSpy
.generateLastDitchFallbackErrorResponseInfo(ex, reqMock, errorId, headersMap);
// then
assertThat(response.httpStatusCode).isEqualTo(expectedHttpStatusCode);
assertThat(response.headersToAddToResponse).isEqualTo(expectedHeadersMap);
assertThat(response.frameworkRepresentationObj.getView()).isInstanceOf(MappingJackson2JsonView.class);
ObjectMapper objectMapperUsed = ((MappingJackson2JsonView)response.frameworkRepresentationObj.getView()).getObjectMapper();
assertThat(objectMapperUsed).isSameAs(JsonUtilWithDefaultErrorContractDTOSupport.DEFAULT_SMART_MAPPER);
assertThat(response.frameworkRepresentationObj.getModel()).hasSize(1);
Object modelObj = response.frameworkRepresentationObj.getModel().values().iterator().next();
assertThat(modelObj).isInstanceOf(DefaultErrorContractDTO.class);
assertThat(objectMapperUsed.writeValueAsString(modelObj)).isEqualTo(expectedBodyPayload);
}
/**
*/
public static ModelAndView JsonObjectError2ModelView(JsonObjectError json) {
ModelAndView model = new ModelAndView(new MappingJackson2JsonView());
model.addObject(FrontEndInterfaceConstant.RETURN_SUCCESS, json.getSuccess());
model.addObject(FrontEndInterfaceConstant.RETURN_MESSAGE, json.getMessage());
model.addObject(FrontEndInterfaceConstant.STATUS_CODE_STRING, json.getStatus());
model.addObject(FrontEndInterfaceConstant.SESSION_ID, json.getSessionId());
return model;
}
/**
*/
public static ModelAndView JsonObjectError2ModelView(JsonObjectError json) {
ModelAndView model = new ModelAndView(new MappingJackson2JsonView());
model.addObject(FrontEndInterfaceConstant.RETURN_SUCCESS, json.getSuccess());
model.addObject(FrontEndInterfaceConstant.RETURN_MESSAGE, json.getMessage());
model.addObject(FrontEndInterfaceConstant.STATUS_CODE_STRING, json.getStatus());
model.addObject(FrontEndInterfaceConstant.SESSION_ID, json.getSessionId());
return model;
}
@BeforeEach
void beforeTest() {
MolgenisRController controller = new MolgenisRController();
mockMvc =
MockMvcBuilders.standaloneSetup(controller)
// use a json view to easily test the model values that get set
.setSingleView(new MappingJackson2JsonView())
.setCustomArgumentResolvers(new TokenExtractor())
.build();
}