From 9a8914e90eafff89573d2aad18f6b5bc996222fa Mon Sep 17 00:00:00 2001 From: K-hermes Date: Sat, 15 Aug 2026 18:27:59 +0800 Subject: [PATCH] =?UTF-8?q?debug:=20=E4=BF=9D=E5=AD=98=E8=AF=B7=E6=B1=82?= =?UTF-8?q?=E4=BD=93=E5=88=B0=E6=96=87=E4=BB=B6=E5=B9=B6=E6=89=93=E5=8D=B0?= =?UTF-8?q?=E9=94=99=E8=AF=AF=E4=BD=8D=E7=BD=AE=E4=B8=8A=E4=B8=8B=E6=96=87?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 改进： - 保存每次请求体到 /tmp/last_request_body.json - 解析错误时提取错误位置（character N） - 打印错误位置前后各 100 字符 - 返回错误位置给前端 方便调试 Unicode 转义问题。 --- nginx/nginx.conf | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/nginx/nginx.conf b/nginx/nginx.conf index b4d4f68..937e1d6 100644 --- a/nginx/nginx.conf +++ b/nginx/nginx.conf @@ -160,18 +160,36 @@ http { -- 记录请求体大小，方便调试 ngx.log(ngx.INFO, "Received body size: ", string.len(body)) + -- 调试：保存请求体到文件以便分析 + local debug_file = io.open("/tmp/last_request_body.json", "w") + if debug_file then + debug_file:write(body) + debug_file:close() + ngx.log(ngx.INFO, "Request body saved to /tmp/last_request_body.json") + end + -- 解析 JSON local ok, data = pcall(cjson.decode, body) if not ok then -- 记录解析错误的详细信息 ngx.log(ngx.ERR, "JSON parse error: ", data) ngx.log(ngx.ERR, "Body preview (first 500 chars): ", string.sub(body, 1, 500)) + + -- 保存出错的位置附近的内容 + local error_pos = tonumber(string.match(tostring(data), "character (%d+)")) + if error_pos then + local start_pos = math.max(1, error_pos - 100) + local end_pos = math.min(string.len(body), error_pos + 100) + ngx.log(ngx.ERR, "Error context (chars ", start_pos, "-", end_pos, "): ", string.sub(body, start_pos, end_pos)) + end + ngx.status = 400 ngx.say(cjson.encode({ error = "Invalid JSON", details = tostring(data), body_size = string.len(body), - body_preview = string.sub(body, 1, 200) + body_preview = string.sub(body, 1, 200), + error_position = error_pos })) return end