Call Marshal and Unmarshal. I followed this post ( How to get JSON response in Golang ) which does not give me any response. JSON Pretty Print. The JWT Token Handler can be configured to run in the WIF pipeline like other built-in security token handlers, but it can also be used independently to. Golang - Arbitrary JSON Array Parsing and Type Switch. This is useful in many programming languages to interact with REST API JSON data contains key and value pairs. Otherwise, we tell our client that we’re going to send them JSON data, and use json. read more ». For all requests, ParseForm parses the raw query from the URL and updates r. By creating an API your application will become easy to maintain and be expandable to web, mobile and IoT as each of these platforms will only require a different frontend that we had not created in this. These days Golang grows in popularity for writing RESTful microservices. July 26, 2016. Example in Golang for implementation of AVL Trees. If you want to convert that JSON array into a slice of structs with the items of the array, heres how you can do it:. Tip Golang with EmberJS - JSON Response. Unmarshal(raw, &c) return c }. json file from template entry. As you can see in the output, the json. Marshall to convert the map or struct to a json. Quick security wins in Golang (Part 1) Rapid7 Blog Quick security wins in Golang (Part 1) but since this is just an API that will return JSON, it is OK for now. In many languages, there are many ways to solve a given problem. Processing Form Request Data In Golang. 使用golang可以像动态语言一样写字面量的json,对于嵌套json的实现,嵌套gin. lock, or a number of other supported formats. share | improve this answer edited Jul 19 '18 at 10:31. 起因 Java 中的 Timestamp 转换为 JSON 是长整型,但在 Golang 中,却是完全不同。因为需要将 Java 的代码转换为 Golang,所以遇到这种相互转换的问题。. Package encoding defines interfaces shared by other packages that convert data to and from byte-level and textual representations. As some might realize I have been getting into gRPC as of late for internal API development at the company I work at. Strings, ints—any objects—are supported. json_config_file - (Optional) The path to a JSON configuration file that contains any number of the provider's parameters. js, Django, and Laravel. Fast forward a bit, Golang is now supported by Lambda and it is incredibly easy to use in combination with Couchbase because of the well-made Go SDK for Couchbase. I got huge response from reader on datatable tutorials,i am sharing next level datatable tutorial with php and mysql,I am extending Datatable Pagination, Sorting and Search – Server Side (PHP/MySQl) Using Ajax. Golang 奇葩的时间包之Json与struct对象之间互相转换,JsonDate和JsonTime自定义类型如何实现json编码和解码(二) 06-25 阅读数 3663 JsonDate和JsonTime自定义类型如何实现json编码和解码 博文 来自: zhengzizhi的专栏. The FOR JSON clause is very much similar to the FOR XML clause. With it, you can easily produce output like this using very little code:. JSON-delta is order sensitive when comparing arrays within the JSON, so while a very useful tool does not meet the OP's criteria. The following characters are reserved in JSON and must be properly escaped to be used in strings: Backspace is replaced with \b. Marshal() function successfully serialized the resulting nested object to the same JSON. Go Concurrency Patterns: Pipelines and cancellation. body,读出来也是空的,新鸟求指导,google了一圈,资料太少了。. func f1 (arg int) (int, error) {if arg == 42. If the program contains tests or examples and no main function, the service runs the tests. In that case, Unmarshal sets the pointer to nil. In Go slices have underlying arrays. Let's say I choose json as a serializer (I will probably go for msgpack, but that's another story). Then Marshal function of the json package is used to encode Go values into JSON values. Andrew Gerrand 25 January 2011 Introduction. JWTs, or JSON Web Tokens as they are more formally known, are a compact, URL-safe means of representing claims to be transferred between two parties. Learn Go by building and authenticating a RESTful API with JSON Web Tokens (JWTs) and pick up some best practices along the way. After we have the JSON object, I execute an HTTP POST to send the command over and return the response as the return value of the function. Featuring auto-HTTPS from Let's Encrypt, HTTP/2 Server Push, and flexible server framework written in Go. list method with the mine parameter set to true to retrieve the playlist ID that identifies the channel's uploaded videos. By taking reference from this you can create more complex applications. What is a function? A function is a block of code that performs a specific task. JSON or Javascript Object Notation as it is short for, is a standard format for sending and receiving information. Here's how to automate the process of generating markdown docs from JSON files if you don't want to actually write markdown files. As you can see in the output, the json. Created AddUser() method and return json response as models. type jsonData struct { Humans `json:"Humans"` } type Humans struct { PeopleData []People `json:"People"` AnimalData []Animal `json:"Animal"` } As json stri. To obtain the actual value, use the normal query syntax instead of dot notation. GitHub Gist: instantly share code, notes, and snippets. Marshal() function successfully serialized the resulting nested object to the same JSON. JSON (JavaScript Object Notation) is a great way to pass data around the Web. Golang http post example. But writing JSON strings by hand is quite ugly, so let's use the json package to do it for us. Its static typing, concurrency primitives, and powerful standard library make it a very viable alternative to popular frameworks like Express. However, I’m just as much a fan of. Skip to content. Converting JSON to a Slice in Golang *This tutorial does not cover coding up a simple webserver, but that is implicitly part of my explanation. Marshal() function successfully serialized the resulting nested object to the same JSON. simple to read and write JSON data from / to a file. The unmarshalling can be done using json. Go's json package decodes JSON-encoded data into native Go data structures. Here's how the server might respond to an invalid JSON document:. The JSON Encoder object is designed for streaming. (We also wrote a trivial wrapper to adapt the existing codec for the new rpc. Join 36 million developers who use GitHub issues to help identify, assign, and keep track of the features and bug fixes your projects need. The service receives a Go program, vets, compiles, links, and runs the program inside a sandbox, then returns the output. This person struct type has name and age fields. This example will show how to hash passwords using bcrypt in the Go programming language. Golang JSON Serialization With Interfaces. The net/http package provides most of what you need, but augmented with the Gorilla Toolkit, you. Save to file. Microservices in Golang - part 2 - Docker and go-micro. In chapter 3 we learned about Go's basic types. It has features such as one line retrieval, dot notation paths, iteration, and parsing json lines. I’m going to use golang simplest/fastest framework gin-gonic and a beautiful ORM gorm for our database work. Step 2: Prepare the workspace. This makes JWT a good choice to be passed in HTML and HTTP environments. With JavaScript you can create an object and assign data to it, like this:. JSONSchema with golang is about using JSONSchema to define configuration files' specification for your application and then the configuration files could be JSON/YAML. Call Marshal and Unmarshal. Unmarshal (body, & data) if err!= nil {return nil, err} Okay so data contains our JSON, now as we have a custom fields time. If you'd like to use a front-end application to test this API, check out the NativeScript with Angular example that I wrote about previously. To use this strategy we need to build a payload describing what we are changing. This article explains how to work with Azure Event Hubs bindings for Azure Functions. golang で JSON を扱うサンプル return} fmt. Go maps in action. Parsing JSON in a request body with Go. streamer is the handler to create a ClientStream and it is the responsibility of the interceptor to call it. This is essentially a confusing way of saying that JWTs allow you to transmit information from a client to the server in a stateless, but secure way. It’s based solely on my subjective experience using both languages in production. This is part of the series that explains how we did photographerexcuses. Contribute to golang/go development by creating an account on GitHub. loads就能搞定。之前项目开发中,为了兼容不同客户端的需求,请求的content-type可以是json,也可以是www-x-urlencode。. We will create simple server. Iterator api can extract string/number from stream of bytes without binding them into object. For implementations supporting only draft-04 or older, see the Obsolete Implementations page. You don't really know the best practices and don't know which one to use. Call the append, cap and make functions. Before you start encoding and decoding JSON using Perl, you need to install JSON module, which can be obtained from CPAN. Golang JSON Example: Marshal, Unmarshal Use the encoding/json library to convert Go objects to JSON. A quick example of a file size comparison between the two file formats; stack. Zac Gross - zacg. In JavaScript, array values can be all of the above, plus any other valid JavaScript expression, including functions, dates, and undefined. (Press 'H' or navigate to hide this message. In this tutorial, I demonstrated how to use Golang to interact with the serial port on my computer. It is simple and, what is more important, very intuitive. Unmarshal() function successfully converted the JSON blob to a Go data structure consisting of a nested map of interfaces and preserved the value type as int. This can be used to decode a JSON document from a string that may have extraneous data at the end. See Uploading objects for a quick guide to simple uploads using tools such as the JSON API. Andrew Gerrand 6 February 2013 Introduction. JSON (JavaScript Object Notation) is a great way to pass data around the Web. 好吧,今天我解析的汽车之家的接口,整个json数. May 28, 2016. Prerequisites. The JSON package can automatically encode your custom data types. If specified, the params present act as a last resort for any other provider param that has not been specified yet. So you can omit the type declaration from the pointer p in the above example and write it like so - var p = &a Let’s see a complete example to make things more clear -. 000000028+08:00`。. In JSON, values must be one of the following data types: a string; a number; an object (JSON object) an array; a boolean; null. The service receives a Go program, vets , compiles, links, and runs the program inside a sandbox, then returns the output. trying to query an API, but the api response is blank. Static arrays have a fixed-length which is defined at initialization. This module can thus also be used as a YAML serializer. These days Golang grows in popularity for writing RESTful microservices. For all requests, ParseForm parses the raw query from the URL and updates r. Near the lake a rainbow forms. Reading in Console Input in Golang; Executing System Commands With Golang; Parsing JSON files With Golang; Parsing XML Files With Golang; The Go init Function; Go Sorting With the sort Package - Tutorial; Go Tickers Tutorial; Go Modules Tutorial; Go JSON Tutorial; concurrency. GJSON is a Go package that provides a fast and simple way to get values from a json document. It is simple and, what is more important, very intuitive. Package proto converts data structures to and from the wire format of protocol buffers. #array #encode #go #golang #json #objects #pages #print #stdout This is how to convert any object within go, into the JSON data structure. Let's say your API is supposed to return:. This is used to support "variant" APIs that can return one of a number of different types. js windows xcode. JSON Package Escapes Special HTML Characters in Keys and String Values. Welcome to the online JSON Viewer, JSON Formatter and JSON Beautifier at codebeautiy. The typical use is to take a value with static type interface{} and extract its dynamic type information by calling TypeOf, which returns a Type. Go's concurrency primitives make it easy to construct streaming data pipelines that make efficient use of I/O and multiple CPUs. It is most commonly used for communication between web back-ends and JavaScript programs running in the browser, but it is used in many other places, too. Marshal() function successfully serialized the resulting nested object to the same JSON. org's servers. js single page app, that gets its data (the excuses) from the Go API. Put this in the context of GoLang, you are looking at marshaling and unmarshalling of. Go is providing os package to create/read/write the file. type jsonData struct { Humans `json:"Humans"` } type Humans struct { PeopleData []People `json:"People"` AnimalData []Animal `json:"Animal"` } As json stri. import "encoding/json" Package json implements encoding and decoding of JSON as defined in RFC 7159. Why do people care about Golang so much? Simple: the combination of safety + speed. This is not the final solution but a journey towards it and I will continue with each post. Time类型穿件别名,然后为这个别名类实现MarshalJSON方法。以下来自gola 博文 来自: 水墨沙场. Its static typing, concurrency primitives, and powerful standard library make it a very viable alternative to popular frameworks like Express. jsonapi-errors - Go bindings based on the JSON API errors reference. Want to write a web app in Go ("golang") like you write a PHP app? Go is cool since it's kind-of multi-threaded and has some other neat advantages over PHP. This code sample calls the API's playlistItems. Go maps in action. I am creating a rest call that will take id as parameters and return as a json data, Next tutorial will have how to handle json data with golang http package. As in our previous tutorial you have learned how to Read File Line by Line using Golang. Sign in Sign up return nil, err}. You'd have to plan ahead. I was frustrated by the lack of a fast, high quality way to marshal JSON to a colorized string in Go so I wrote my own Marshaller called ColorJSON. The argument to go mod init is the module path, the location where the module may be found. And why does json() return a promise? Because. return ParseDegrees (nmea. Otherwise, we tell our client that we’re going to send them JSON data, and use json. Unmarshal() function successfully converted the JSON blob to a Go data structure consisting of a nested map of interfaces and preserved the value type as int. Tip Golang with EmberJS - JSON Response. Stdout or even HTTP response bodies. Golang has quickly evolved into an exciting language for web application backend development. unmarshalling() function in golang. Call the append, cap and make functions. Is Dijkstra not optimal for this case? algorithm,go. Show how to make cross-domain requests by JSONP (JSON with Padding) technique, which allows data to be retrieved from servers of other domains. Remember the tutorial series I wrote in regards to creating a user profile store with Node. One of the most useful data structures in computer science is the hash table. Create a secured REST Api using JWT and Golang. Build a RESTful JSON API with GOlang. Golang HTTP status checker. list method with the mine parameter set to true to retrieve the playlist ID that identifies the channel's uploaded videos. func Marshal(v interface{}) ([]byte. Create an Object with this values in map chain to return new array Next step deep copy the array of object to new object. This golang tutorial help to understand basics of routing and golang uses with echo framework. As a result, implementing an interface once can make a type useful in multiple encodings. We will create simple server. Package proto converts data structures to and from the wire format of protocol buffers. With Marshal and Unmarshal, we convert to JSON data and from. This could also be helpful to people who are new to GO. Host, stripping any valid port number if present. It’s often used to read data such as HTTP response body, files and other data sources which implement io. The bits below can be combined to specify which fields should be filled in the result packages. GitHub Gist: instantly share code, notes, and snippets. This saves developers time and makes the large codebase easy to maintain. The low-level DynamoDB API uses JavaScript Object Notation (JSON) as a wire protocol format. In this example we are going read-write-update JSON data in a JSON file via user interface forms, fetch data for a specific records and also delete data for a specific record. I ended up copying the JSON marshaler code from GO’s library and modifiying it with a new paramater that will lowercase JSON field names when set. However, this looks to be JSON lines and not valid JSON. It supports the Web server flow, client-side credentials, service accounts, Google Compute Engine service accounts, and Google App Engine service accounts. Stdout or even HTTP response bodies. You may have source data with containing JSON-encoded strings that you do not necessarily want to deserialize into a table in Athena. This is a short example, if you can begin to understand how a web server operates in Golang. Skip to content. While we used mock data instead of a database, we saw how to create endpoints that do various operations with JSON data and Golang slices. 好吧,今天我解析的汽车之家的接口,整个json数. json is one of the most wildly used Go packages. Contribute to golang/go development by creating an account on GitHub. type Result struct { Name string `json: "name"` Status string `json: "status"` Result []Result `json: "result"` }. Fast forward a bit, Golang is now supported by Lambda and it is incredibly easy to use in combination with Couchbase because of the well-made Go SDK for Couchbase. One of the most useful data structures in computer science is the hash table. It can also be a single object of name/value pairs or a single object with a single property with an array of name/value pairs. You just saw how to add two-factor authentication (2FA) to a Golang application that makes use of Json Web Tokens (JWT). QJsonRpc is licensed under the LGPLv2. It's that simple. This tutorial follow MVC pattern to create golang application. Dijkstra should pass, I just make a submission using JAVA, and it took less than a second to complete each task. The site is a Vue. Set the GOPATH environment variable to your working directory. golang 中 json 转 struct <1. simple is available at Maven central repository. golang 这种深度嵌套的JSON怎么解析。 尤其是dataValue 带转义符的。 前面都解析出来了 就是dataValue无法解析。 cannot unmarshal string into Go value of type DataValue. Benchmarks will likely not be supported since the program runs in a sandboxed environment with limited resources. But encoding the JSON might fail (because a nested field is invalid or somesuch). ffjson is a project I have been hacking on for making JSON serialization faster in the Go programing language. To access this data we need json and request libraries or we can use the built in pandas read_json() method. trying to query an API, but the api response is blank. Golang has the ability to declare and create own data types by combining one or more types, including both built-in and user-defined types. Create Versatile Microservices in Golang — Part 6 (Web Clients) We'll continue learning how to develop microservices with Go by looking at the client side and creating web clients for our platform. Marshal() function successfully serialized the resulting nested object to the same JSON. As you can see in the output, the json. However, you do not need a webserver component to use the instructions below. The Go Playground is a web service that runs on golang. In this example we are going read-write-update JSON data in a JSON file via user interface forms, fetch data for a specific records and also delete data for a specific record. In version 9. You cannot send your token as part of the query string or as an attribute in your posted JSON. Golang Text Template: Testing, Inheritance, If, Else, Range, Array, Map, String & File Examples Examples using Golang Text Template The Go text/template package provides data-driven templates that enable network automation. Values true, false and null are returned as TRUE, FALSE and NULL respectively. Step 2: Prepare the workspace. It's that simple. Secondly, the type of your struct should match the type of the Json data, such as using int instead of string for globalTradeID. Link together AWS Lambda & API Gateway to create a scalable HTTPS service for barcode generation. md#patch-operations. JSON or Javascript Object Notation as it is short for, is a standard format for sending and receiving information. Pretty print variable (struct, map, array, slice) in Golang. jsonprettyprint. As a result, implementing an interface once can make a type useful in multiple encodings. Alternatively, you should consider Jackson 2 or Gson. Golang post return json response. Unmarshal() function successfully converted the JSON blob to a Go data structure consisting of a nested map of interfaces and preserved the value type as int. In this part of the tutorial we are going to create a new REST endpoint which, when hit with a HTTP GET request, will return all of the articles for our site. By convention, errors are the last return value and have type error, a built-in interface. Fast forward a bit, Golang is now supported by Lambda and it is incredibly easy to use in combination with Couchbase because of the well-made Go SDK for Couchbase. In general, the Go philosophy prefers to include the 3 simple lines over 1 tricky line. Learn how to perform optical character recognition (OCR) on Google Cloud Platform. Go Web App Example - Entry Point, File Structure, Models, and Routes January 04, 2016 · Code Samples Go There are a few frameworks for Go that make it easier to build a web Application. In this tutorial we'll be building a chat app using Go, JavaScript and Scaledrone realtime messaging platform. 8 func (u *URL) Hostname() string Hostname returns u. The first endpoint is just a really simple endpoint that returns a json object with a key and value of "message":. JSON-RPC allows for notifications (data sent to the server that does not require a response) and for multiple calls to be sent to the server which may be answered out of order. Marshall to convert the map or struct to a json. Deserialize from BSON. Near the lake a rainbow forms. longitude, nmea. Returns the value encoded in json in appropriate PHP type. json: follows the JSON Patch Spec (RFC 6902) These are documented in detail at: docs/devel/api-conventions. golang的time. If you haven’t already read my previous Golang with Travis CI tutorial, I recommend you do as it provides a lot of useful explanations. It maps keys to values. If the program contains tests or examples and no main function, the service runs the tests. golang convert time to json. This is part of the series that explains how we did photographerexcuses. js and the Go programming language. This is an alternative to other examples that might use sessions to store the first factor rather than a JWT. With docker compose, you configure all your application’s services (containers) in a single yaml file, then spin up all of them with a single command. and the headers say that you are returning application/json. org's servers. Format, Save, Share. Otherwise, Unmarshal unmarshals the JSON into the value pointed at by the pointer. When I first started programming in Go, my summary of it was, “The good things are great and the bad things are weird and I can live with them. This gives a lot more flexibility as the DAL is consumable directly by object(and assorted collection types) or via XML/JSON. Remember the tutorial series I wrote in regards to creating a user profile store with Node. Prerequisites. In version 9. I agree with the comments above though, this would be much better handled by making sure each struct satisfies the fmt. Be careful with ioutil. The argument to go mod init is the module path, the location where the module may be found. Golang Text Template: Testing, Inheritance, If, Else, Range, Array, Map, String & File Examples Examples using Golang Text Template The Go text/template package provides data-driven templates that enable network automation. In the examples above we always used bytes and strings as intermediates between the data and JSON representation on standard out. You don’t need to know how an electric motor fits together if all you want to do is pick up the groceries. go {3 4} 12 14 {5} 78. The code so far is nice and procedural, and easy to understand. Use if, else if and else statements to test values. Welcome all, in this tutorial, we are going to be taking a look at how you can read in JSON files, or JSON HTTP responses and parse them to your hearts desire. Creating Golang MVC Application Using Echo wFramework and MySQL. Keyboard Command Shortcuts. I will cover applying some clean architecture to my prior post. simple is a simple Java library for JSON processing, read and write JSON data and full compliance with JSON specification (RFC4627). Please report issues on GitHub. Package google provides support for making OAuth2 authorized and authenticated HTTP requests to Google APIs. If you're new to Azure Functions, start with the following resources: For Azure. UPDATED: 11th April 2019 Sponsor me on Patreon to support more content like this. JSON-RPC is a remote procedure call protocol encoded in JSON. bool, for JSON booleans float64, for JSON numbers string, for JSON strings []interface{}, for JSON arrays map[string]interface{}, for JSON objects nil for JSON null To unmarshal a JSON array into a slice, Unmarshal resets the slice length to zero and then appends each element to the slice. To use this strategy we need to build a payload describing what we are changing. By convention, errors are the last return value and have type error, a built-in interface. json is one of the most wildly used Go packages. JSON is a javascript object notation used to transfer data between client and server. Everyone who has studied Java programming knows that Java is an object-oriented language. 5 – BOX_FETCH_MAP_DECODE – [00001000] Field points to map with mixed types, so we must unbox each individual value (potentially pointing to more nested maps or lists) and reconstruct the appropriate JSON type for each individual value. JSON supports all the basic data types you'd expect: numbers, strings, and boolean values, as well as arrays and hashes. The receiver is like a parameter – it has a name and a type – but by creating the function in this way it allows us to call the function using the. Problem工作中遇到这样的问题: 用 golang 需要存储一段 json 数据到数据库,为此先将这段数据 base64 了一下然后再存储到数据库,之后取出之后直接返回给了前端,前端先用 atob 做 base64 解码,之后调用 JSON. How to I get JSON back from golang without it being encoded as a string? I am using this project to wrap go code in python so that I can execute it in an AWS lambda function. Golang 奇葩的时间包之Json与struct对象之间互相转换,JsonDate和JsonTime自定义类型如何实现json编码和解码(二) 06-25 阅读数 3666 JsonDate和JsonTime自定义类型如何实现json编码和解码 博文 来自: zhengzizhi的专栏. Have you ever been given a comma separated value (CSV) file filled with people information where the data is only partially complete and you're the one tasked with filling in the blanks?. simple to encode or decode JSON text. If the program contains tests or examples and no main function, the service runs the tests. N1QL + Go + JSON Marshaling Developed by Couchbase for use with Couchbase Server, N1QL provides a common query language and JSON-based data model for distributed document-oriented databases. This gives a lot more flexibility as the DAL is consumable directly by object(and assorted collection types) or via XML/JSON. The JSON format is the most used format in web applications to read and write dynamic data. Going into this, note that we're going to be using mock data, not dynamic data residing in a database. json to your working directory. JSON Serialization With Golang But there are some nooks and crannies. In Go slices have underlying arrays. First of all, the returned json data is an array, which should be translate to slices (instead of a single struct). Parse golang cover coverage data to JSON, using the same format as lcov-parse Parse golang-cover report files, and return a JSON representation in a lcov-parse. The net package includes a variety of methods to manipulate IP addresses. After we have the JSON object, I execute an HTTP POST to send the command over and return the response as the return value of the function. Golang JSON的进阶用法实例讲解 更新时间:2018年09月26日 10:49:56 作者:yulibaozi 我要评论 这篇文章主要给大家介绍了关于Golang JSON进阶用法的相关资料,文中通过示例代码介绍的非常详细,对大家学习或者使用golang具有一定的参考学习价值,需要的朋友们下面随着小. Welcome to golang-nuts, a general discussion list for the Go Programming Language. Sunday, October. Step 2: Prepare the workspace. Streaming with JSON usually means newline delimited JSON objects and this is why the Encode method adds a newline character. You just saw how to add two-factor authentication (2FA) to a Golang application that makes use of Json Web Tokens (JWT). The service receives a Go program, vets, compiles, links, and runs the program inside a sandbox, then returns the output. You may have source data with containing JSON-encoded strings that you do not necessarily want to deserialize into a table in Athena. A presentation created with Slides. JSON Uses JavaScript Syntax. { "firstName": "John", "lastName" : "doe", "age" : 26, "address" : { "streetAddress": "naist street", "city" : "Nara", "postalCode" : "630-0192" }, "phoneNumbers. Please report issues on GitHub. You serialize Golang values using the Marshal() function into a slice of bytes. We’re going to see how to take a Golang application and send it through a Jenkins powered continuous integration and continuous deployment pipeline. XML to JSON and JSON to XML converter online. Unmarshal 时,结构体的每一项必须是导出项(import field)。也就是说结构体的 key 对应的首字母必须为大写。. JSON (JavaScript Object Notation) is a simple data interchange format. Обзор JSON - один из самых популярных форматов сериализации. golang 这种深度嵌套的JSON怎么解析。 尤其是dataValue 带转义符的。 前面都解析出来了 就是dataValue无法解析。 cannot unmarshal string into Go value of type DataValue. Some tips working with JSON: Whitespace (Space, Horizontal tab, Line feed or New line or Carriage return) does not matter in JSON. Golang Func Examples: If. In Go they look like this: var x [5]int. However, a pointer to a string (or *string) can be nil.