serialization

问题 Is there any way to ignore null fields while serializing POCO to JSON string using Utf8Json library? I have a ToString method in my below class which I am using externally so I wanted to see if there is any way to exclude null fields while doing serialization? Basically I don't want null fields in my json string after serialization. I am using Uft8Json library here. public class Process { public Process() { } [DataMember(Name = "lang_code")] public string LCode { get; set; } [DataMember(Name

问题 Is there any way to ignore null fields while serializing POCO to JSON string using Utf8Json library? I have a ToString method in my below class which I am using externally so I wanted to see if there is any way to exclude null fields while doing serialization? Basically I don't want null fields in my json string after serialization. I am using Uft8Json library here. public class Process { public Process() { } [DataMember(Name = "lang_code")] public string LCode { get; set; } [DataMember(Name

问题 I'm currently trying to serialize and deserialize an openCV Mat so that i can send the frame from a client to server using Boost. The problem i am having is that when i deserialise the image it gives duplicate overlapping images in different colours. I am not sure why this is happening. Any help would be much appreciated. I'm sorry I cannot post an image as i do not have enough badges. header file for custom serialisation of cv::Mat #ifndef cv__Mat_Serialization_serialization_h #define cv_

问题 I'm currently trying to serialize and deserialize an openCV Mat so that i can send the frame from a client to server using Boost. The problem i am having is that when i deserialise the image it gives duplicate overlapping images in different colours. I am not sure why this is happening. Any help would be much appreciated. I'm sorry I cannot post an image as i do not have enough badges. header file for custom serialisation of cv::Mat #ifndef cv__Mat_Serialization_serialization_h #define cv_

问题 I have an XML which has some values and at times there can be null values as shown below: I do not want the nodes with null listed at all in the XML! The elements are set IsNullable = true in the class. Any suggestions as I have tried out many stuffs in Google.. nothing helped! <?xml version="1.0" encoding="utf-8"?> <Materials> <Material> <MaterialName>ABC</MaterialName> <Weight Value="0.303"> <Weight_A xsi:nil="true" /> <Weight_B xsi:nil="true" /> </Weight> <Density Value="800"> <Density_A

问题 I have an XML which has some values and at times there can be null values as shown below: I do not want the nodes with null listed at all in the XML! The elements are set IsNullable = true in the class. Any suggestions as I have tried out many stuffs in Google.. nothing helped! <?xml version="1.0" encoding="utf-8"?> <Materials> <Material> <MaterialName>ABC</MaterialName> <Weight Value="0.303"> <Weight_A xsi:nil="true" /> <Weight_B xsi:nil="true" /> </Weight> <Density Value="800"> <Density_A

问题 I have an XML which has some values and at times there can be null values as shown below: I do not want the nodes with null listed at all in the XML! The elements are set IsNullable = true in the class. Any suggestions as I have tried out many stuffs in Google.. nothing helped! <?xml version="1.0" encoding="utf-8"?> <Materials> <Material> <MaterialName>ABC</MaterialName> <Weight Value="0.303"> <Weight_A xsi:nil="true" /> <Weight_B xsi:nil="true" /> </Weight> <Density Value="800"> <Density_A

问题 For an enum with attributes, eg: public enum Thing { THING_A("a"), THING_B("b"); private String thing; private Thing(String thing) { this.thing = thing; } // Getters... } Jackson serializes as the name of the values, eg: mapper.writeValueAsString(Thing.THING_A)); // "THING_A" If we add the annotation to treat serialisation as an object: @JsonFormat(shape = JsonFormat.Shape.OBJECT) it will serialize the attributes: mapper.writeValueAsString(Thing.THING_A)); // "{"thing":"a"}" I'd like to be

问题 How do I display the content of a JavaScript object in a string format like when we alert a variable? The same formatted way I want to display an object. 回答1: If you want to print the object for debugging purposes, use the code: var obj = {prop1: 'prop1Value', prop2: 'prop2Value', child: {childProp1: 'childProp1Value'}} console.log(obj) will display: Note: you must only log the object. For example, this won't work: console.log('My object : ' + obj) Note ' : You can also use a comma in the log

问题 How do I display the content of a JavaScript object in a string format like when we alert a variable? The same formatted way I want to display an object. 回答1: If you want to print the object for debugging purposes, use the code: var obj = {prop1: 'prop1Value', prop2: 'prop2Value', child: {childProp1: 'childProp1Value'}} console.log(obj) will display: Note: you must only log the object. For example, this won't work: console.log('My object : ' + obj) Note ' : You can also use a comma in the log