using Go framework gin to develop backend API, local port is: http: localhost:8080 basic code is: import ( "github.com gin-gonic gin" "github.com rs cors" ... ) type Post struct { ID uint `json:&...
when I do a long connection service for the first time, I encounter a small problem, which used to be http. Use url to determine the service for example, let s be clear. for example, there are two services, one login and one chat, and the correspond...
the server uses the go language, and the json output by the framework iris contains data of int64 type: 7156182378476995584 js has changed the value after receiving it, changing to: 7156182378476996000 the problem is mainly on the server side: thi...
when you write the interface, for example, there is a scenario when users browse the article, they need to increase the number of views to the article . scenario 1: when adding pageviews, there is a channel listener, and the program is running all t...
when you assign a variable of pointer type to a new variable, just pass an address, two variables actually point to the same object, change one, that is, change both. package main import ( "container list" "fmt" ) func mai...
package main import( "os" "fmt" "io ioutil" ". words" "time" ) func main(){ fileName:=os.Args[1] contents,err:=ioutil.ReadFile(fileName) if(err!=nil){ fmt.Println(err) return } text:=string(con...
when using xorm to query Join join tables, because both tables have Id fields and other fields, the official website needs to add anonymous references if they repeat: : GoogleGO : xorm : removed the first structure and wrote two heavy fiel...
1. The basic backstage configuration of Wechat official account is as follows 2. 3. Code-post the most important part const WXMESSAGETOKEN = "zxxxxxx4 " type CdataString struct { Value string `xml:",cdata"` } type ReqWxMessage str...
package main func main() { ch1 := make(chan int) go pump(ch1) pump hangs } func pump(ch chan int) { ch <- 1 ch <- 2 } Why is it that there is nothing wrong with writing a corruption? Blocking the main process will deadlock ...
The architecture is as follows: nginx acts as a reverse proxy to proxy pass the http request to the backend golang http server nginx==>httpserver is it possible to restart gracefully in this way 1. Start a new golang http server to listen on o...
package main import ( "fmt" ) type test interface { Error1() string } func New(name string) test { return &student{name} } type student struct { name string } func (s *student) Error1() string { fmt.Println("Er...
recently, I have been learning the rpc framework, because I see that some rpc frameworks are not cross-language, serialization is only in their own language, and those languages are rarely used in client-side development. I m talking about the client s...
1.golang reported an error 2 when using sqlx s transaction. The code is as follows package main import ( "log" _ "github.com lib pq" PostgreSQL "github.com jmoiron sqlx" "github.com lib pq" ...
s := []byte("") fmt.Println(cap(s)) 32 but s := []byte("") fmt.Println(cap(s)) 0 fmt.Println(s) Is the compiler does some optimizations? ...
I know that just because the socket send function returns successfully does not mean that the other party will receive it successfully. In general, we have to ask the other party to answer "copy " or not? Especially on the mobile end, the traffic on the...
ssl certificate problems under centos6.3 cause git clone curl github resources to fail https: www.v2ex.com t 434848 is there any way to upgrade if you don t want to upgrade? what is given on the Internet is basically upgrading nss-related ...
I think most of the dynamic libraries for parsing the C language use the C package, but this package requires .h files. Now there are only so files, can you load so files directly like python s ctype package? ...
stack.go package stack type Stack struct{ i int data [10]int } func (S *Stack) Push(n int) { S.data[S.i] = n S.iPP } demothree.go package main import( "fmt" "stack" ) func main() { var s stack.Stack...
as shown in the figure, the code is not long, Stop does not respond to the value of the Ticker pointer in tickerTest1, and there is no problem for tickerTest2 to use the returned pointer directly. ...
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request http: xxx sites app index.php?m=user&c=index&a=avatar&user_id=0F0993200F910338F0EE638EFDFA1779 when matching the address http: xxx sites app avatar 0F0993200F910338F0EE638EFDFA1779 the following doesn t seem to work location sites ap...
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how can bootstrap-treeview uncheck the state when clicking on the same node? The action is to click on the node, and the clicked node is selected (no checkbox), clicks on the node again, and the node selection is canceled. It is true that the official w...
the problem occurs after running mvn help:system. The error message is as follows: [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] -------------------------------------------------------------...
data can be found using get find but post always returns an empty array router.post( login , function (req, res) { let params = { userName: req.body.userName, userPwd: req.body.userPwd } User.find(params, function(err, doc) { ...