Arthas 使用 tt 命令抓取调用异常、调用耗时、传入参数、返回参数

示例代码

package com.example.arthas.controller;

@Slf4j
@RestController
public class Test111Controller {

    @GetMapping("/test1")
    public Result test1(@RequestParam String key) {
        log.info("test1111111111111#{}", key);
        List<String> list = (List<String>) CollectionUtils.arrayToList(new String[]{"aaa", "bbb", "ccc"});
        return Result.builder().msg("请求成功").data(list).build();
    }

}

@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class Result {

    private int code;
    private String msg;
    private Object data;

}

tt -t

[arthas@18800]$ tt -t com.example.arthas.controller.Test111Controller test1
Press Q or Ctrl+C to abort.
Affect(class count: 1 , method count: 1) cost in 42 ms, listenerId: 1
 INDEX        TIMESTAMP                       COST(ms)        IS-RET       IS-EXP       OBJECT                  CLASS                                            METHOD
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 1000         2021-02-10 11:51:51             1.7066          true         false        0x704b2127              Test111Controller                                test1

字段含义

tt -l

检索调用记录，列出已经捕获的调用记录。

参考地址

https://arthas.aliyun.com/doc/tt.html