{"id":36700,"date":"2023-07-05T08:57:15","date_gmt":"2023-07-29T19:46:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e8%bf%9b%e8%a1%8c%e6%96%87%e4%bb%b6%e6%9c%aa%e5%85%b3%e9%97%ad%e6%97%b6%e7%9a%84%e8%a1%8c%e4%b8%ba%e7%a1%ae%e8%ae%a4%e5%92%8c%e6%9c%aa%e5%85%b3%e9%97%ad%e6%96%87%e4%bb%b6\/"},"modified":"2024-04-30T12:04:18","modified_gmt":"2024-04-30T04:04:18","slug":"%e3%80%90java%e3%80%91%e8%bf%9b%e8%a1%8c%e6%96%87%e4%bb%b6%e6%9c%aa%e5%85%b3%e9%97%ad%e6%97%b6%e7%9a%84%e8%a1%8c%e4%b8%ba%e7%a1%ae%e8%ae%a4%e5%92%8c%e6%9c%aa%e5%85%b3%e9%97%ad%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e8%bf%9b%e8%a1%8c%e6%96%87%e4%bb%b6%e6%9c%aa%e5%85%b3%e9%97%ad%e6%97%b6%e7%9a%84%e8%a1%8c%e4%b8%ba%e7%a1%ae%e8%ae%a4%e5%92%8c%e6%9c%aa%e5%85%b3%e9%97%ad%e6%96%87%e4%bb%b6\/","title":{"rendered":"\u3010Java\u3011\u8fdb\u884c\u6587\u4ef6\u672a\u5173\u95ed\u65f6\u7684\u884c\u4e3a\u786e\u8ba4\u548c\u672a\u5173\u95ed\u6587\u4ef6\u7684\u9632\u62a4\u63aa\u65bd\u7684\u68c0\u9a8c"},"content":{"rendered":"<h3>\u3010\u6458\u8981\u3011<\/h3>\n<p>\u5982\u679c\u5fd8\u8bb0\u5b9e\u73b0close\u65b9\u6cd5\u6216\u8005\u5728try-with-resources\u8bed\u53e5\u4e2d\u6ca1\u6709\u5b9e\u73b0\uff0c\u5c06\u4f1a\u5bfc\u81f4\u6587\u4ef6\u672a\u5173\u95ed\u7684\u60c5\u51b5\u3002<br \/>\n\u5982\u679c\u5ffd\u7565\u6587\u4ef6\u672a\u5173\u95ed\u7684\u95ee\u9898\uff0c\u4f1a\u5bfc\u81f4\u8d85\u8fc7\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u9650\uff0c\u8fdb\u800c\u65e0\u6cd5\u521b\u5efa\u66f4\u591a\u6587\u4ef6\u7684\u9519\u8bef\u3002<\/p>\n<p>\u6211\u5011\u5c07\u555f\u52d5\u4e00\u500b\u80fd\u5920\u9032\u884c\u6587\u4ef6\u4e0a\u50b3\u7684Spring Boot WebAPI\uff0c\u4e26\u5be6\u969b\u4e0a\u50b3\u6587\u4ef6\u4ee5\u9032\u884c\u78ba\u8a8d\u3002<\/p>\n<h3>\u3010\u73af\u5883\u3011<\/h3>\n<p>Windows11<br \/>\nDocker\u7248\u672c20.10.21\uff0c\u6784\u5efabaeda1f<br \/>\nJava 19<br \/>\nSpring Boot 3.1.4<\/p>\n<p>Windows11<br \/>\nDocker 20.10.21 \u7248\u672c\uff0c\u6784\u5efa baeda1f<br \/>\nJava 19<br \/>\nSpring Boot 3.1.4<\/p>\n<h3>\u3010\u4ee3\u7801\u3011<\/h3>\n<p>&nbsp;<\/p>\n<details>DemoController.javaDemoController.java<br \/>\n\u5305 com.example.demo.controller;<\/p>\n<p>\u5bfc\u5165 org.springframework.web.bind.annotation.PostMapping;<br \/>\n\u5bfc\u5165 org.springframework.web.bind.annotation.RestController;<br \/>\n\u5bfc\u5165 org.springframework.web.multipart.MultipartFile;<\/p>\n<p>\u5bfc\u5165 java.io.IOException;<br \/>\n\u5bfc\u5165 java.io.InputStream;<br \/>\n\u5bfc\u5165 java.nio.file.Files;<br \/>\n\u5bfc\u5165 java.nio.file.Path;<br \/>\n\u5bfc\u5165 java.nio.file.Paths;<br \/>\n\u5bfc\u5165 java.util.stream.Stream;<\/p>\n<p>RestController \u7c7b DemoController {<br \/>\n@PostMapping(&#8220;\/demo&#8221;)<br \/>\n\u4e3a public void getDemo(MultipartFile file, int n) throws IOException {<br \/>\n\/\/ n = 1\uff5e2 \u662f\u6709\u6587\u4ef6\u8d44\u6e90\u672a\u5173\u95ed\u7684\u5b9e\u73b0<br \/>\n\/\/ n = 3\uff5e4 \u662f\u6ca1\u6709\u6587\u4ef6\u8d44\u6e90\u672a\u5173\u95ed\u7684\u5b9e\u73b0<br \/>\n\u5982\u679c (n == 1) {<br \/>\nPath tempDir = Paths.get(System.getProperty(&#8220;java.io.tmpdir&#8221;));<br \/>\nStream list = Files.list(tempDir);<br \/>\n} else \u5982\u679c (n == 2) {<br \/>\nInputStream stream = file.getInputStream();<br \/>\n} else \u5982\u679c (n == 3) {<br \/>\nPath tempDir = Paths.get(System.getProperty(&#8220;java.io.tmpdir&#8221;));<br \/>\ntry (Stream list = Files.list(tempDir)) {<br \/>\n}<br \/>\n} else \u5982\u679c (n == 4) {<br \/>\ntry (InputStream stream = file.getInputStream()) {<br \/>\n}<br \/>\n}<br \/>\n}<br \/>\n}<\/p>\n<\/details>\n<h3>\u3010\u52a8\u4f5c\u786e\u8ba4\u3011<\/h3>\n<h4>\u5907\u597d\u4e86<\/h4>\n<p>\u8bf7\u5c06\u4ee5\u4e0b\u94fe\u63a5\u4e2d\u7684\u6587\u4ef6\u4fdd\u5b58\u5230\u672c\u5730\u3002<br \/>\n\u672c\u6587\u4e2d\u4f7f\u7528\u4e86 C:\\work\\demo\\out\\artifacts\\demo_jar \u4f5c\u4e3a\u4fdd\u5b58\u8def\u5f84\u8fdb\u884c\u9a8c\u8bc1\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u8bf7\u6253\u5f004\u4e2a\u7ec8\u7aef\uff08\u672c\u6587\u4e2d\u6307\u547d\u4ee4\u63d0\u793a\u7b26\uff09\uff0c\u5e76\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u6267\u884c\u547d\u4ee4\u3002<\/p>\n<h4>\u7ec8\u7aef1\uff08\u7528\u4e8e\u521b\u5efa\u548c\u542f\u52a8Docker\u955c\u50cf\u548c\u5bb9\u5668\uff09<\/h4>\n<p>\u521b\u5efa\u5e76\u542f\u52a8Docker\u955c\u50cf\u548c\u5bb9\u5668\u3002<br \/>\n\u542f\u52a8jshell\uff0c\u4f46\u4fdd\u6301\u4e0d\u505a\u4efb\u4f55\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">C:\\work\\demo\\out\\artifacts\\demo_jar&gt;<\/span>docker build <span class=\"nt\">-t<\/span> file-close-leak <span class=\"nb\">.<\/span>\r\n<span class=\"go\">[+] Building 1.0s (8\/8) FINISHED\r\n<\/span><span class=\"gp\"> =&gt;<\/span> <span class=\"o\">[<\/span>internal] load build definition from Dockerfile                                        0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">=&gt;<\/span> transferring dockerfile: 31B                                                         0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">[<\/span>internal] load .dockerignore                                                           0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">=&gt;<\/span> transferring context: 2B                                                             0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">[<\/span>internal] load metadata <span class=\"k\">for <\/span>docker.io\/library\/eclipse-temurin:19-jdk-alpine            0.9s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">[<\/span>1\/3] FROM docker.io\/library\/eclipse-temurin:19-jdk-alpine@sha256:7e4fc4b3ae1bd8ed4205  0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">[<\/span>internal] load build context                                                           0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">=&gt;<\/span> transferring context: 168B                                                           0.0s\r\n<span class=\"gp\"> =&gt;<\/span> CACHED <span class=\"o\">[<\/span>2\/3] COPY demo.jar demo.jar                                                     0.0s\r\n<span class=\"gp\"> =&gt;<\/span> CACHED <span class=\"o\">[<\/span>3\/3] COPY post-data<span class=\"k\">*<\/span>.txt \/                                                      0.0s\r\n<span class=\"gp\"> =&gt;<\/span> exporting to image                                                                      0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">=&gt;<\/span> exporting layers                                                                     0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">=&gt;<\/span> writing image sha256:3c22e953d7a40a897d58e1985b76afce23574c9b546c771f471d8d675845fd  0.0s\r\n<span class=\"gp\"> =&gt;<\/span> <span class=\"o\">=&gt;<\/span> naming to docker.io\/library\/file-close-leak                                          0.0s\r\n<span class=\"go\">\r\nUse 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them\r\n\r\n<\/span><span class=\"gp\">C:\\work\\demo\\out\\artifacts\\demo_jar&gt;<\/span>\r\n<span class=\"gp\">C:\\work\\demo\\out\\artifacts\\demo_jar&gt;<\/span>docker run <span class=\"nt\">-it<\/span> <span class=\"nt\">-p<\/span> 8080:8080 <span class=\"nt\">--name<\/span> file-close-leak file-close-leak\r\n<span class=\"gp\">Oct 14, 2023 10:10:15 PM java.util.prefs.FileSystemPreferences$<\/span>1 run\r\n<span class=\"go\">INFO: Created user preferences directory.\r\n|  Welcome to JShell -- Version 19.0.2\r\n|  For an introduction type: \/help intro\r\n\r\n<\/span><span class=\"gp\">jshell&gt;<\/span>\r\n<\/code><\/pre>\n<h4>\u7ec8\u7aef\u4e8c\uff08\u66f4\u6539\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u9650\u3001\u7528\u4e8e\u542f\u52a8\u5e94\u7528\uff09<\/h4>\n<p>\u6211\u5c06\u6267\u884culimit\u547d\u4ee4\u6765\u68c0\u67e5\u548c\u66f4\u6539\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u4e0a\u9650\u3002<br \/>\n\u5728\u66f4\u6539\u4e4b\u524d\uff0c\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u4e0a\u9650\u4e3a1048576\uff0c\u4f46\u4e3a\u4e86\u65b9\u4fbf\u8fdb\u884c\u884c\u4e3a\u786e\u8ba4\uff0c\u73b0\u5728\u5c06\u5176\u6539\u4e3a30\u3002<br \/>\n\uff08\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u66f4\u6539\u548c\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u4e0d\u5728\u540c\u4e00\u7ec8\u7aef\u4e2d\u6267\u884c\uff0c\u5219\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u66f4\u6539\u5c06\u4e0d\u4f1a\u751f\u6548\uff09<br \/>\n\u5982\u679c\u5728\u540e\u7eed\u5904\u7406\u4e2d\u6267\u884c\u8bf7\u6c42\u65f6\u51fa\u73b0\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u9650\u9519\u8bef\uff0c\u53ef\u4ee5\u5148\u5173\u95ed\u5e94\u7528\u7a0b\u5e8f\u518d\u91cd\u65b0\u542f\u52a8\uff0c\u8fd9\u6837\u6587\u4ef6\u6253\u5f00\u6570\u5c06\u88ab\u91cd\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">C:\\work\\demo\\out\\artifacts\\demo_jar&gt;<\/span>docker container <span class=\"nb\">exec<\/span> <span class=\"nt\">-it<\/span> file-close-leak \/bin\/sh\r\n<span class=\"gp\">\/ #<\/span> <span class=\"nb\">ulimit<\/span> <span class=\"nt\">-n<\/span>\r\n<span class=\"go\">1048576\r\n<\/span><span class=\"gp\">\/ #<\/span> <span class=\"nb\">ulimit<\/span> <span class=\"nt\">-n<\/span> 30\r\n<span class=\"gp\">\/ #<\/span> <span class=\"nb\">ulimit<\/span> <span class=\"nt\">-n<\/span>\r\n<span class=\"go\">30\r\n<\/span><span class=\"gp\">\/ #<\/span>\r\n<span class=\"gp\">\/ #<\/span> java <span class=\"nt\">-jar<\/span> demo.jar\r\n<span class=\"go\">\r\n  .   ____          _            __ _ _\r\n \/\\\\ \/ ___'_ __ _ _(_)_ __  __ _ \\ \\ \\ \\\r\n( ( )\\___ | '_ | '_| | '_ \\\/ _` | \\ \\ \\ \\\r\n \\\\\/  ___)| |_)| | | | | || (_| |  ) ) ) )\r\n  '  |____| .__|_| |_|_| |_\\__, | \/ \/ \/ \/\r\n =========|_|==============|___\/=\/_\/_\/_\/\r\n :: Spring Boot ::                (v3.1.4)\r\n\r\n2023-10-14T22:13:03.249Z  INFO 124 --- [           main] com.example.demo.DemoApplication\r\n : Starting DemoApplication using Java 19.0.2 with PID 124 (\/demo.jar started by root in \/)\r\n2023-10-14T22:13:03.250Z  INFO 124 --- [           main] com.example.demo.DemoApplication\r\n : No active profile set, falling back to 1 default profile: \"default\"\r\n2023-10-14T22:13:03.764Z  INFO 124 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer\r\n : Tomcat initialized with port(s): 8080 (http)\r\n2023-10-14T22:13:03.770Z  INFO 124 --- [           main] o.apache.catalina.core.StandardService\r\n : Starting service [Tomcat]\r\n2023-10-14T22:13:03.770Z  INFO 124 --- [           main] o.apache.catalina.core.StandardEngine\r\n : Starting Servlet engine: [Apache Tomcat\/10.1.13]\r\n2023-10-14T22:13:03.831Z  INFO 124 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[\/]\r\n : Initializing Spring embedded WebApplicationContext\r\n2023-10-14T22:13:03.831Z  INFO 124 --- [           main] w.s.c.ServletWebServerApplicationContext\r\n : Root WebApplicationContext: initialization completed in 555 ms\r\n2023-10-14T22:13:04.091Z  INFO 124 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer\r\n : Tomcat started on port(s): 8080 (http) with context path ''\r\n2023-10-14T22:13:04.093Z  INFO 124 --- [           main] com.example.demo.DemoApplication\r\n : Started DemoApplication in 1.019 seconds (process running for 1.153)\r\n\r\n<\/span><\/code><\/pre>\n<h4>\u7b2c\u4e09\u7ec8\u7aef\uff08\u7528\u4e8e\u76d1\u89c6\u6587\u4ef6\u6253\u5f00\u6570\u76ee\uff09<\/h4>\n<p>\u76d1\u89c6\u6b63\u5728\u8fd0\u884c\u7684demo.jar\u8fdb\u7a0b\u6240\u6253\u5f00\u7684\u6587\u4ef6\u3002\u7531\u4e8e\u6b64\u5904\u8fdb\u7a0bID\u4e3a124\uff0c\u56e0\u6b64\u5c06\u76d1\u89c6\/proc\/124\/fd\u76ee\u5f55\uff0c\u4f46\u8bf7\u6839\u636e\u60a8\u81ea\u5df1\u7684\u73af\u5883\u8bbe\u7f6e\u8fdb\u7a0bID\u3002<\/p>\n<pre class=\"post-pre\"><code>C:\\work\\demo\\out\\artifacts\\demo_jar&gt;docker container exec -it file-close-leak \/bin\/sh\r\n\/ # ps | grep demo.jar | grep -v grep\r\n  124 root      0:05 java -jar demo.jar\r\n\/ #\r\n\/ # watch -n 1 -d \"ls -l \/proc\/124\/fd | wc -l\"\r\nEvery 1.0s: ls -l \/proc\/124\/fd | wc -l                                       2023-10-14 22:20:06\r\n\r\n12\r\n<\/code><\/pre>\n<h4>\u7b2c\u56db\u7ec8\u7aef\uff08\u7528\u4e8e\u8bf7\u6c42\u6267\u884c\uff09<\/h4>\n<p>\u6267\u884c\u6587\u4ef6\u4e0a\u4f20\u8bf7\u6c42\u3002<br \/>\n\u5bf9\u4e8e\u6bcf\u4e2a\u6587\u672c\u6587\u4ef6\uff0c\u90fd\u53ef\u4ee5\u6839\u636e\u60f3\u8981\u786e\u8ba4\u7684\u4ee3\u7801\u9009\u62e9\u76f8\u5e94\u7684\u6a21\u5f0f\u8fdb\u884c\u6267\u884c\u3002<br \/>\n\u6bcf\u6b21\u6267\u884cpost-data1.txt\u548cpost-data2.txt\u7684\u8bf7\u6c42\uff0c\u7ec8\u7aef3\u7684\u6587\u4ef6\u6253\u5f00\u6570\u90fd\u4f1a\u589e\u52a0\u3002\u7531\u4e8e\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u9650\u8bbe\u7f6e\u4e3a30\uff0c\u8d85\u8fc730\u65f6\u4f1a\u5728\u7ec8\u7aef2\u4e2d\u53d1\u751f\u9519\u8bef\u3002<br \/>\n\u800c\u5bf9\u4e8epost-data3.txt\u548cpost-data4.txt\uff0c\u4e0d\u4f1a\u51fa\u73b0\u5173\u95ed\u9057\u6f0f\u7684\u60c5\u51b5\uff0c\u6240\u4ee5\u65e0\u8bba\u6267\u884c\u591a\u5c11\u6b21\uff0c\u7ec8\u7aef3\u7684\u6587\u4ef6\u6253\u5f00\u6570\u90fd\u4e0d\u4f1a\u589e\u52a0\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">post-data1.txt\uff1aFiles.list\u306e\u30af\u30ed\u30fc\u30ba\u6f0f\u308c\u3092\u3059\u308b\u30d1\u30bf\u30fc\u30f3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">post-data2.txt\uff1aMultipartFile.getInputStream()\u306e\u30af\u30ed\u30fc\u30ba\u6f0f\u308c\u3092\u3059\u308b\u30d1\u30bf\u30fc\u30f3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">post-data3.txt\uff1aFiles.list\u306e\u30af\u30ed\u30fc\u30ba\u6f0f\u308c\u3092\u3057\u306a\u3044\u30d1\u30bf\u30fc\u30f3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">post-data4.txt\uff1aMultipartFile.getInputStream()\u306e\u30af\u30ed\u30fc\u30ba\u6f0f\u308c\u3092\u3057\u306a\u3044\u30d1\u30bf\u30fc\u30f3<\/ul>\n<pre class=\"post-pre\"><code><span class=\"gp\">C:\\work\\demo\\out\\artifacts\\demo_jar&gt;<\/span>docker container <span class=\"nb\">exec<\/span> <span class=\"nt\">-it<\/span> file-close-leak \/bin\/sh\r\n<span class=\"gp\">\/ #<\/span> wget <span class=\"nt\">--header<\/span><span class=\"o\">=<\/span><span class=\"s2\">\"Content-Type: multipart\/form-data; boundary=--------------------------12345\"<\/span> <span class=\"nt\">--post-file<\/span><span class=\"o\">=<\/span>post-data1.txt http:\/\/localhost:8080\/demo <span class=\"o\">&gt;<\/span> \/dev\/null 2&gt;&amp;1\r\n<\/code><\/pre>\n<h3>\u3010\u6587\u4ef6\u63cf\u8ff0\u7b26\u8d85\u8fc7\u4e0a\u9650\u65f6\u7684\u9519\u8bef\u3011<\/h3>\n<p>\u5f53\u6587\u4ef6\u63cf\u8ff0\u7b26\u8d85\u8fc7\u4e0a\u9650\u65f6\uff0c\u5c06\u5728\u7ec8\u7aef2\u4e2d\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n<h4>\u53d1\u751fFiles.list\u672a\u6b63\u786e\u5173\u95ed\u7684\u9519\u8bef\u6a21\u5f0f<\/h4>\n<p>java.nio.file.FileSystemException: \u53d1\u751f\u4e86\/tmp\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u65e0\u53ef\u7528\u7684\u9519\u8bef\u3002<\/p>\n<details>\u9519\u8bef\u6d88\u606f<br \/>\n2023-10-14T22:17:41.468Z ERROR 124 &#8212; [nio-8080-exec-9] o.a.c.c.C.[.[.[\/].[dispatcherServlet]<br \/>\n\uff1a\u5728\u8def\u5f84\u4e3a[]\u7684\u4e0a\u4e0b\u6587\u4e2d\u4e3a[dispatcherServlet]\u7684servlet\u63d0\u4f9b\u670d\u52a1\u65f6\u629b\u51fa\u5f02\u5e38java.nio.file.FileSystemException\uff1a\/tmp\uff1a\u6ca1\u6709\u53ef\u7528\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26<br \/>\n\u5728java.base \/ sun.nio.fs.UnixException.translateToIOException\uff08UnixException.java:100\uff09~[na\uff1ana]\u5904<br \/>\n\u5728java.base \/ sun.nio.fs.UnixException.asIOException\uff08UnixException.java:115\uff09~[na\uff1ana]\u5904<br \/>\n\u5728java.base \/ sun.nio.fs.UnixFileSystemProvider.newDirectoryStream\uff08UnixFileSystemProvider.java:436\uff09~[na\uff1ana]\u5904<br \/>\n\u5728java.base \/ java.nio.file.Files.newDirectoryStream\uff08Files.java:482\uff09~[na\uff1ana]\u5904<br \/>\n\u5728java.base \/ java.nio.file.Files.list\uff08Files.java:3791\uff09~[na\uff1ana]\u5904<br \/>\n\u5728com.example.demo.controller.DemoController.getDemo\uff08DemoController.java:22\uff09~[demo.jar:na]\u5904<br \/>\n\u5728java.base \/ jdk.internal.reflect.DirectMethodHandleAccessor.invoke\uff08DirectMethodHandleAccessor.java:104\uff09~[na\uff1ana]\u5904<br \/>\n\u5728java.base \/ java.lang.reflect.Method.invoke\uff08Method.java:578\uff09~[na\uff1ana]\u5904<br \/>\n\u5728org.springframework.web.method.support.InvocableHandlerMethod.doInvoke\uff08InvocableHandlerMethod.java:205\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest\uff08InvocableHandlerMethod.java:150\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle\uff08ServletInvocableHandlerMethod.java:118\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod\uff08RequestMappingHandlerAdapter.java:884\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal\uff08RequestMappingHandlerAdapter.java:797\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle\uff08AbstractHandlerMethodAdapter.java:87\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.DispatcherServlet.doDispatch\uff08DispatcherServlet.java:1081\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.DispatcherServlet.doService\uff08DispatcherServlet.java:974\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.FrameworkServlet.processRequest\uff08FrameworkServlet.java:1011\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.FrameworkServlet.doPost\uff08FrameworkServlet.java:914\uff09~[demo.jar:na]\u5904<br \/>\n\u5728jakarta.servlet.http.HttpServlet.service\uff08HttpServlet.java:590\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.servlet.FrameworkServlet.service\uff08FrameworkServlet.java:885\uff09~[demo.jar:na]\u5904<br \/>\n\u5728jakarta.servlet.http.HttpServlet.service\uff08HttpServlet.java:658\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.internalDoFilter\uff08ApplicationFilterChain.java:205\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.doFilter\uff08ApplicationFilterChain.java:149\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.tomcat.websocket.server.WsFilter.doFilter\uff08WsFilter.java:51\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.internalDoFilter\uff08ApplicationFilterChain.java:174\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.doFilter\uff08ApplicationFilterChain.java:149\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.filter.RequestContextFilter.doFilterInternal\uff08RequestContextFilter.java:100\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.filter.OncePerRequestFilter.doFilter\uff08OncePerRequestFilter.java:116\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.internalDoFilter\uff08ApplicationFilterChain.java:174\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.doFilter\uff08ApplicationFilterChain.java:149\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.filter.FormContentFilter.doFilterInternal\uff08FormContentFilter.java:93\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.filter.OncePerRequestFilter.doFilter\uff08OncePerRequestFilter.java:116\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.internalDoFilter\uff08ApplicationFilterChain.java:174\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.doFilter\uff08ApplicationFilterChain.java:149\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal\uff08CharacterEncodingFilter.java:201\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.springframework.web.filter.OncePerRequestFilter.doFilter\uff08OncePerRequestFilter.java:116\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.internalDoFilter\uff08ApplicationFilterChain.java:174\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.ApplicationFilterChain.doFilter\uff08ApplicationFilterChain.java:149\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.StandardWrapperValve.invoke\uff08StandardWrapperValve.java:167\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.StandardContextValve.invoke\uff08StandardContextValve.java:90\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.authenticator.AuthenticatorBase.invoke\uff08AuthenticatorBase.java:482\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.StandardHostValve.invoke\uff08StandardHostValve.java:115\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.valves.ErrorReportValve.invoke\uff08ErrorReportValve.java:93\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.core.StandardEngineValve.invoke\uff08StandardEngineValve.java:74\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.catalina.connector.CoyoteAdapter.service\uff08CoyoteAdapter.java:341\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.coyote.http11.Http11Processor.service\uff08Http11Processor.java:391\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.coyote.AbstractProcessorLight.process\uff08AbstractProcessorLight.java:63\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.coyote.AbstractProtocol$ConnectionHandler.process\uff08AbstractProtocol.java:894\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun\uff08NioEndpoint.java:1740\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.tomcat.util.net.SocketProcessorBase.run\uff08SocketProcessorBase.java:52\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker\uff08ThreadPoolExecutor.java:1191\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run\uff08ThreadPoolExecutor.java:659\uff09~[demo.jar:na]\u5904<br \/>\n\u5728org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run\uff08TaskThread.java:61\uff09~[demo.jar:na]\u5904<br \/>\n\u5728java.base \/ java.lang.Thread.run\uff08Thread.java:1589\uff09~[na\uff1ana]\u5904<\/p>\n<\/details>\n<h4>\u5728\u5904\u7406MultipartFile.getInputStream()\u65f6\u53d1\u751f\u4e86\u5173\u95ed\u9057\u6f0f\u7684\u9519\u8bef\u3002<\/h4>\n<p>java.io.FileNotFoundException: \/tmp\/tomcat.8080.6074378283170779966\/work\/Tomcat\/localhost\/ROOT\/upload_577ee3c3_e912_4314_9526_9ff273979e84_00000034.tmp\uff08\u6ca1\u6709\u53ef\u7528\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff09\u53d1\u751f\u9519\u8bef\u3002<\/p>\n<details>\u9519\u8bef\u6d88\u606f<br \/>\n2023\u5e7410\u670814\u65e5T22:22:34.575Z \u9519\u8bef1155 &#8212; [nio-8080-exec-8] o.a.c.c.C.[.[.[\/].[dispatcherServlet] : \u5728\u8def\u5f84\u4e3a[]\u7684\u4e0a\u4e0b\u6587\u4e2d\u4e3aservlet [dispatcherServlet]\u63d0\u4f9b\u7684\u670d\u52a1\u65f6\u629b\u51fa\u5f02\u5e38[\u8bf7\u6c42\u5904\u7406\u5931\u8d25\uff1aorg.springframework.web.multipart.MultipartException: \u89e3\u6790\u591a\u90e8\u5206servlet\u8bf7\u6c42\u5931\u8d25]\uff0c\u6839\u672c\u539f\u56e0\u662fjava.io.FileNotFoundException: \/tmp\/tomcat.8080.6074378283170779966\/work\/Tomcat\/localhost\/ROOT\/upload_577ee3c3_e912_4314_9526_9ff273979e84_00000034.tmp\uff08\u65e0\u53ef\u7528\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff09<br \/>\nat java.base\/java.io.FileOutputStream.open0(Native Method) ~[na:na]<br \/>\nat java.base\/java.io.FileOutputStream.open(FileOutputStream.java:295) ~[na:na]<br \/>\nat java.base\/java.io.FileOutputStream.(FileOutputStream.java:236) ~[na:na]<br \/>\nat java.base\/java.io.FileOutputStream.(FileOutputStream.java:185) ~[na:na]<br \/>\nat org.apache.tomcat.util.http.fileupload.DeferredFileOutputStream.thresholdReached(DeferredFileOutputStream.java:151) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.http.fileupload.ThresholdingOutputStream.checkThreshold(ThresholdingOutputStream.java:200) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.http.fileupload.ThresholdingOutputStream.write(ThresholdingOutputStream.java:126) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:103) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:292) ~[demo.jar:na]<br \/>\nat org.apache.catalina.connector.Request.parseParts(Request.java:2788) ~[demo.jar:na]<br \/>\nat org.apache.catalina.connector.Request.getParts(Request.java:2689) ~[demo.jar:na]<br \/>\nat org.apache.catalina.connector.RequestFacade.getParts(RequestFacade.java:774) ~[demo.jar:na]<br \/>\nat org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:93) ~[demo.jar:na]<br \/>\nat org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.(StandardMultipartHttpServletRequest.java:86) ~[demo.jar:na]<br \/>\nat org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:112) ~[demo.jar:na]<br \/>\nat org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1219) ~[demo.jar:na]<br \/>\nat org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1053) ~[demo.jar:na]<br \/>\nat org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974) ~[demo.jar:na]<br \/>\nat org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011) ~[demo.jar:na]<br \/>\nat org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914) ~[demo.jar:na]<br \/>\nat jakarta.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[demo.jar:na]<br \/>\nat org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[demo.jar:na]<br \/>\nat jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[demo.jar:na]<br \/>\nat org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[demo.jar:na]<br \/>\nat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[demo.jar:na]<br \/>\nat org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[demo.jar:na]<br \/>\nat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[demo.jar:na]<br \/>\nat org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[demo.jar:na]<br \/>\nat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[demo.jar:na]<br \/>\nat org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[demo.jar:na]<br \/>\nat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[demo.jar:na]<br \/>\nat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[demo.jar:na]<br \/>\nat org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341) ~[demo.jar:na]<br \/>\nat org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391) ~[demo.jar:na]<br \/>\nat org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[demo.jar:na]<br \/>\nat org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1740) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[demo.jar:na]<br \/>\nat org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[demo.jar:na]<br \/>\nat java.base\/java.lang.Thread.run(Thread.java:1589) ~[na:na]<\/p>\n<\/details>\n<h3>\u3010\u9632\u6b62\u4fe1\u606f\u6cc4\u6f0f\u63aa\u65bd\u3011<\/h3>\n<h4>\u6b63\u786e\u8bbe\u7f6eIDE\u7684\u8b66\u544a\uff0c\u4ee5\u514d\u5ffd\u7565\u6389\u3002<\/h4>\n<h5>\u5728Eclipse\u4e2d<\/h5>\n<p>\u5728Windows \u914d\u7f6e\u9762\u677f\u7684Java\u7f16\u8bd1\u5668\u9519\u8bef\/\u8b66\u544a\u8bbe\u7f6e\u754c\u9762\u4e2d\uff0c\u8bbe\u7f6e\u4ee5\u4e0b\u4e24\u4e2a\u9009\u9879\u4e3a\u9519\u8bef\u3002\u8fd9\u6837\u53ef\u4ee5\u5728\u7f16\u8f91\u5668\u4e2d\u786e\u8ba4\u53d1\u751f\u7684\u9519\u8bef\u5e76\u9632\u6b62\u6cc4\u6f0f\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5b83\u4eec\u5206\u522b\u8bbe\u7f6e\u4e3a\u8b66\u544a\u548c\u5ffd\u7565\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ea\u30bd\u30fc\u30b9\u30fb\u30ea\u30fc\u30af<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u6f5c\u5728\u7684\u306a\u30ea\u30bd\u30fc\u30b9\u30fb\u30ea\u30fc\u30af<\/ul>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2a6037434c4406c4721e\/39-0.png\" alt=\"image.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2a6037434c4406c4721e\/40-0.png\" alt=\"image.png\" \/><\/div>\n<h5>\u5982\u679c\u662fIntelliJ\u7684\u60c5\u51b5<\/h5>\n<p>\u5728\u6587\u4ef6 -&gt; \u8bbe\u7f6e -&gt; \u7f16\u8f91\u5668 -&gt; \u68c0\u67e5\u8bbe\u7f6e\u4e2d\u52fe\u9009\u8d44\u6e90\u7ba1\u7406\u7684\u6240\u6709\u9009\u9879\uff0c\u4f46\u5bf9\u4e8efile.getInputStream\u7684\u8b66\u544a\u672a\u51fa\u73b0\uff0c\u56e0\u6b64\u9700\u8981\u6ce8\u610f\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2a6037434c4406c4721e\/43-0.png\" alt=\"image.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2a6037434c4406c4721e\/44-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u7136\u800c\uff0c\u5982\u679c\u5b89\u88c5\u4e86\u540d\u4e3aPMD\u7684\u9759\u6001\u5206\u6790\u63d2\u4ef6\uff0c\u5c31\u53ef\u4ee5\u68c0\u6d4b\u5230\uff08SpotBugs\u65e0\u6cd5\u68c0\u6d4b\u5230\uff09\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2a6037434c4406c4721e\/46-0.png\" alt=\"image.png\" \/><\/div>\n<h4>\u770b\u516c\u5f0fAPI\u6587\u6863<\/h4>\n<p>\u6211\u4f1a\u79ef\u6781\u786e\u8ba4\u516c\u5f0fAPI\u6587\u6863\u4e2d\u7684\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n<h5>\u5217\u51fa\u6587\u4ef6\u7684\u6587\u6863\u3002<\/h5>\n<p>&nbsp;<\/p>\n<blockquote><p>\u9700\u8981\u5728try-with-resources\u8bed\u53e5\u6216\u7c7b\u4f3c\u7684\u63a7\u5236\u7ed3\u6784\u4e2d\u4f7f\u7528\u6b64\u65b9\u6cd5\uff0c\u4ee5\u786e\u4fdd\u5728\u6d41\u64cd\u4f5c\u5b8c\u6210\u540e\u7acb\u5373\u5173\u95ed\u6253\u5f00\u7684\u6d41\u76ee\u5f55\u3002<\/p><\/blockquote>\n<h5>MultipartFile.getInputStream\u7684\u6587\u4ef6\u6458\u8981<\/h5>\n<p>&nbsp;<\/p>\n<blockquote><p>\u7528\u6237\u6709\u8d23\u4efb\u5173\u95ed\u8fd4\u56de\u7684\u6d41\u3002<\/p><\/blockquote>\n<h4>\u76d1\u89c6\u6587\u4ef6\u6253\u5f00\u6570\u91cf<\/h4>\n<p>\u5373\u4f7f\u5728IDE\u6216\u5b98\u65b9\u6587\u6863\u4e2d\u6709\u9057\u6f0f\u7684\u60c5\u51b5\u4e0b\uff0c\u901a\u8fc7\u5b9e\u9645\u542f\u52a8\u5e94\u7528\u7a0b\u5e8f\u5e76\u76d1\u89c6\u6587\u4ef6\u6253\u5f00\u6570\u91cf\uff0c\u6211\u4eec\u53ef\u4ee5\u68c0\u6d4b\u5230\u5173\u95ed\u9057\u6f0f\u3002<\/p>\n<h5>\u5982\u679c\u662fWindows\u7684\u60c5\u51b5<\/h5>\n<p>\u5728Windows11\u7684\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u4ee5\u4ece\u4efb\u52a1\u7ba1\u7406\u5668\u7684\u8d44\u6e90\u76d1\u89c6\u5668\u4e2d\u786e\u8ba4\u3002<br \/>\n\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u4e0d\u6309\u641c\u7d22\u6846\u53f3\u4fa7\u7684\u66f4\u65b0\u6309\u94ae\uff0c\u5c4f\u5e55\u5c06\u4e0d\u4f1a\u66f4\u65b0\u3002<\/p>\n<h6>\u5728\u4f7f\u7528Files.list\u65f6\u53d1\u751f\u4e86\u672a\u5173\u95ed\u7684\u60c5\u51b5\u3002<\/h6>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2a6037434c4406c4721e\/60-0.png\" alt=\"image.png\" \/><\/div>\n<h6>MultipartFile.getInputStream()\u5bfc\u81f4\u6d41\u672a\u5173\u95ed\u7684\u60c5\u51b5<\/h6>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2a6037434c4406c4721e\/62-0.png\" alt=\"image.png\" \/><\/div>\n<h5>\u82e5\u662fLinux\u7cfb\u7edf<\/h5>\n<p>\u5728Linux\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u63d0\u5230\u8fc7\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770b\u7279\u5b9a\u8fdb\u7a0b\u6253\u5f00\u7684\u6587\u4ef6\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"go\">watch -n 1 -d \"ls -l \/proc\/[\u30d7\u30ed\u30bb\u30b9ID]\/fd | wc -l\"\r\n<\/span><\/code><\/pre>\n<h3>\u3010 \u53c2\u8003\u7f51\u7ad9\u3011<\/h3>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u6458\u8981\u3011 \u5982\u679c\u5fd8\u8bb0\u5b9e\u73b0close\u65b9\u6cd5\u6216\u8005\u5728try-with-resources\u8bed\u53e5\u4e2d\u6ca1\u6709\u5b9e\u73b0\uff0c\u5c06\u4f1a\u5bfc\u81f4\u6587\u4ef6\u672a\u5173 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