jackson

问题 This is the method: protected <T> TestPageResult<T> getTestPageResutForRequest(MockHttpServletRequestBuilder request) throws Exception { String responseJson = mockMvc.perform(request).andReturn().getResponse() .getContentAsString(); TestPageResult<T> response = getObjectMapper().readValue(responseJson, new TypeReference<TestPageResult<T>>() { }); return response; } I call it like this: TestPageResult<SomeDto> pageResult = this.<SomeDto>getTestPageResutForRequest(getRequest()); TestPageResult

问题 This is the method: protected <T> TestPageResult<T> getTestPageResutForRequest(MockHttpServletRequestBuilder request) throws Exception { String responseJson = mockMvc.perform(request).andReturn().getResponse() .getContentAsString(); TestPageResult<T> response = getObjectMapper().readValue(responseJson, new TypeReference<TestPageResult<T>>() { }); return response; } I call it like this: TestPageResult<SomeDto> pageResult = this.<SomeDto>getTestPageResutForRequest(getRequest()); TestPageResult

问题 This is the method: protected <T> TestPageResult<T> getTestPageResutForRequest(MockHttpServletRequestBuilder request) throws Exception { String responseJson = mockMvc.perform(request).andReturn().getResponse() .getContentAsString(); TestPageResult<T> response = getObjectMapper().readValue(responseJson, new TypeReference<TestPageResult<T>>() { }); return response; } I call it like this: TestPageResult<SomeDto> pageResult = this.<SomeDto>getTestPageResutForRequest(getRequest()); TestPageResult

问题 I have some class in Java that I want to convert to a Map<String, String> . The catch is that any fields of my java class that don't have an obvious String representation (collections, other classes) should be converted to json strings. Here's an example: @Data @AllArgsConstructor class MyClass { String field1; Long field2; Set<String> field3; OtherClass field4; } @Data @AllArgsConstructor class OtherClass { String field1; String field2; } ObjectMapper mapper = new ObjectMapper(); MyClass

问题 I'm using Spring boot to create a restful api service. Everything works correctly, except that I cannot specify which data to be returned as JSON. What I want is to get the output without the field "content" ( which in my case is used for storing the object ). Spring version is 4.2.5 That's why I've defined 3 levels of views ( Internal being the one to be used when getting / setting object in the database, Public is the minimal data to be output to client ): public class EntityVisibility {

问题 I'm using Spring boot to create a restful api service. Everything works correctly, except that I cannot specify which data to be returned as JSON. What I want is to get the output without the field "content" ( which in my case is used for storing the object ). Spring version is 4.2.5 That's why I've defined 3 levels of views ( Internal being the one to be used when getting / setting object in the database, Public is the minimal data to be output to client ): public class EntityVisibility {

问题 Jackson 1.9.9 is somewhat inconsistent in what it parses into scalar values (bool, int, string). Any array or object type fails but you can put any scalar type into a string. For bool 0 and not 0 are mapped to false/true. int attributes accept only numbers. public class Foo { public String s; public boolean b; public int i; } ObjectMapper mapper = new ObjectMapper(); System.out.println(mapper.readValue("{\"s\":\"abc\"}", Foo.class).s); // "abc" System.out.println(mapper.readValue("{\"s\":true

问题 Jackson 1.9.9 is somewhat inconsistent in what it parses into scalar values (bool, int, string). Any array or object type fails but you can put any scalar type into a string. For bool 0 and not 0 are mapped to false/true. int attributes accept only numbers. public class Foo { public String s; public boolean b; public int i; } ObjectMapper mapper = new ObjectMapper(); System.out.println(mapper.readValue("{\"s\":\"abc\"}", Foo.class).s); // "abc" System.out.println(mapper.readValue("{\"s\":true

问题 I try to have Jackson property type info serialized, even when my type is referenced by a map. With this simple sample: import java.util.HashMap; import com.fasterxml.jackson.annotation.JsonTypeInfo; import com.fasterxml.jackson.annotation.JsonTypeName; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; public class DemoJackson { @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY) public static abstract

问题 I try to have Jackson property type info serialized, even when my type is referenced by a map. With this simple sample: import java.util.HashMap; import com.fasterxml.jackson.annotation.JsonTypeInfo; import com.fasterxml.jackson.annotation.JsonTypeName; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; public class DemoJackson { @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY) public static abstract