可以使用FaultLogger.query()获取故障日志，该方法可以捕获 C++ 程序故障、JS 程序故障和应用程序卡死故障。通过此方法，可以获取故障进程的进程 ID、故障进程的用户 ID、故障类型、日志生成时的秒级时间戳、故障原因、故障模块、故障摘要和故障日志全文。请参考以下示例代码：
import { FaultLogger } from '@kit.PerformanceAnalysisKit';
import { BusinessError } from '@kit.BasicServicesKit'
async function getLog() {
try {
let value: Array<FaultLogger.FaultLogInfo> = await FaultLogger.query(FaultLogger.FaultType.JS_CRASH);
if (value) {
console.info("value length is " + value.length);
let len: number = value.length;
for (let i = 0; i < len; i++) {
console.info("log: " + i);
console.info("Log pid: " + value[i].pid);
console.info("Log uid: " + value[i].uid);
console.info("Log type: " + value[i].type);
console.info("Log timestamp: " + value[i].timestamp);
console.info("Log reason: " + value[i].reason);
console.info("Log module: " + value[i].module);
console.info("Log summary: " + value[i].summary);
console.info("Log text: " + value[i].fullLog);
}
}
} catch (err) {
console.error(`code: ${(err as BusinessError).code}, message: ${(err as BusinessError).message}`);
}
} 参考链接