How to solve the problem of 'cannot post' error when using submit form under Nodejs

 
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The registration form I wrote was submitted to the registerOK page using a post request. After submission, a "cannot post" error was displayed. The express template engine used, the code is as follows:

app.get("/registOK",function (req,res,next) { res.render("registOK"); });

Later, I searched on the Internet and found that routing generally uses "get", but if you specify "post" for form submission, you also need to add one to the routing:

app.post("/registOK",function (req,res,next) { res.render("registOK"); });

ok! The problem is solved!