我正在使用 node.js v0.6.10
尽管我在 0.6.7
上遇到了同样的问题。基本上我使用 spawn
运行一个子进程,它启动另一个 node.js 进程,并通过 stdout
和 stdin
进行通信这是两个脚本:
父级(cli.js
):
var spawn = require("child_process").spawn;
var doSpawn = function(callback){
var child = spawn('child.js');
child.on('exit', function(code){
console.log("Child exited with code " + code);
});
child.stdin.write("ping");
child.stdin.end();
};
doSpawn();
setTimeout(function(){}, 10000);
child.js
var run = function(){
process.stdout.on('drain', function(){
process.exit(0);
});
process.stdout.write(stdout);
};
var stdin = process.stdin;
stdin.resume();
stdin.setEncoding("utf8");
var stdout = '';
stdin.on('data', function(data){
stdout += data;
});
stdin.on('end', run);
然后当我运行 node cli.js
时:
$ node cli.js
node.js:201
throw e; // process.nextTick error, or 'error' event on first tick
^
Error: write EPIPE
at errnoException (net.js:642:11)
at Object.afterWrite [as oncomplete] (net.js:480:18)
最佳答案
建议运行另一个 Node 进程*child_process.fork()* http://nodejs.org/docs/latest/api/child_processes.html#child_process.fork
修改后的代码:
var cp = require("child_process");
var doSpawn = function(callback){
var child = cp.fork('child.js');
child.on('exit', function(code){
console.log("Child exited with code " + code);
});
child.stdin.write("ping");
child.stdin.end();
};
doSpawn();
setTimeout(function(){}, 10000);
关于child_process.spawn 上的 node.js EPIPE 异常,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9245126/