Question

我试图通过java运行以下curl命令。这从命令行正常运行，但是当我使用java运行它时抛出错误

curl -XPOST -H'Content-type: application/json' "http://localhost:8084/druid/v2/?pretty" -d'{"queryType":"timeBoundary","dataSource":"wikipedia"}'

这是使用processbuilder的java代码：

ProcessBuilder pb1 = new ProcessBuilder(
            "-XPOST",
            "-H", "Content-Type:application/json",
            "http://localhost:8084/druid/v2/?pretty",
            "-d", "{\"queryType\":\"timeBoundary\",\"dataSource\":\"wikipedia\"}"

        );

Process shell = pb1.start();

这是我得到的错误。

Exception in thread "main" java.io.IOException: Cannot run program "-XPOST": error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
at com.druid.DruidConnection.main(DruidConnection.java:69)

Caused by: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.forkAndExec(Native Method)
at java.lang.UNIXProcess.<init>(UNIXProcess.java:187)
at java.lang.ProcessImpl.start(ProcessImpl.java:130)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
... 1 more

Answer 1

您需要将curl.exe添加为第一个参数：

ProcessBuilder pb1 = new ProcessBuilder(
            "curl.exe",
            "-XPOST",
            "-H", "Content-Type:application/json",
            "http://localhost:8084/druid/v2/?pretty",
            "-d", "{\"queryType\":\"timeBoundary\",\"dataSource\":\"wikipedia\"}"

        );

此外，您需要确保curl.exe的文件夹位于PATH

中

PS。当然它适用于Windows，因为* NIX只是“卷曲”

通过java运行curl命令时出错

1 个答案: