{"id":65312,"date":"2025-05-03T15:01:24","date_gmt":"2025-05-03T07:01:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65312\/"},"modified":"2025-05-03T15:01:24","modified_gmt":"2025-05-03T07:01:24","slug":"java-%e6%80%8e%e4%b9%88%e6%8e%a5%e5%8f%97js%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65312\/","title":{"rendered":"java \u600e\u4e48\u63a5\u53d7js\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u4f7f\u7528 java \u63a5\u6536 javascript \u6570\u7ec4\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a1. \u901a\u8fc7 json\uff1a\u5c06 javascript \u6570\u7ec4\u8f6c\u6362\u4e3a json \u5b57\u7b26\u4e32\uff0c\u5728 java \u4e2d\u4f7f\u7528 json \u89e3\u6790\u5668\u5c06\u5176\u89e3\u6790\u4e3a\u6570\u7ec4\u30022. \u901a\u8fc7 xmlhttprequest\uff1a\u4f7f\u7528 xmlhttprequest \u53d1\u9001\u6570\u7ec4\uff0c\u5728 java \u4e2d\u4f7f\u7528 servlet \u63a5\u6536\u8bf7\u6c42\u5e76\u63d0\u53d6\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111220033287154.jpg\" class=\"aligncenter\" title=\"java \u600e\u4e48\u63a5\u53d7js\u6570\u7ec4\u63d2\u56fe\" alt=\"java \u600e\u4e48\u63a5\u53d7js\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Java \u63a5\u6536 JavaScript \u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\u63a5\u6536 JavaScript \u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 JSON<\/strong><\/p>\n<p>JSON\uff08JavaScript \u5bf9\u8c61\u8868\u793a\u6cd5\uff09\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u6570\u636e\u4ea4\u6362\u683c\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5728 JavaScript \u548c Java \u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u8981\u4f7f\u7528 JSON \u63a5\u6536 JavaScript \u6570\u7ec4\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u5728 JavaScript \u4e2d\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a JSON \u5b57\u7b26\u4e32\uff1a<\/li>\n<\/ul>\n<pre>const jsArray = [1, 2, 3];\nconst jsonString = JSON.stringify(jsArray);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u5728 Java \u4e2d\uff0c\u4f7f\u7528 JSONParser \u89e3\u6790 JSON \u5b57\u7b26\u4e32\u5e76\u8f6c\u6362\u4e3a\u6570\u7ec4\uff1a<\/li>\n<\/ul>\n<pre>import com.google.gson.Gson;\nimport com.google.gson.JsonParser;\n\nGson gson = new Gson();\nJsonParser parser = new JsonParser();\nJsonArray jsonArr = parser.parse(jsonString).getAsJsonArray();\n\nint[] javaArray = gson.fromJson(jsonArr, int[].class);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 XMLHttpRequest<\/strong><\/p>\n<p>XMLHttpRequest \u5bf9\u8c61\u53ef\u7528\u4e8e\u5728\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 XMLHttpRequest \u63a5\u6536 JavaScript \u6570\u7ec4\uff1a<\/p>\n<ul>\n<li>\u5728 JavaScript \u4e2d\uff0c\u4f7f\u7528 XMLHttpRequest \u5bf9\u8c61\u53d1\u9001\u6570\u7ec4\uff1a<\/li>\n<\/ul>\n<pre>const xhr = new XMLHttpRequest();\nxhr.open(\"POST\", \"url_to_java_servlet\", true);\nxhr.setRequestHeader(\"Content-Type\", \"application\/json\");\nxhr.send(JSON.stringify(jsArray));<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u5728 Java \u4e2d\uff0c\u4f7f\u7528 Servlet \u63a5\u6536\u8bf7\u6c42\u5e76\u63d0\u53d6\u6570\u7ec4\uff1a<\/li>\n<\/ul>\n<pre>import javax.servlet.ServletException;\nimport javax.servlet.http.HttpServlet;\nimport javax.servlet.http.HttpServletRequest;\nimport javax.servlet.http.HttpServletResponse;\n\npublic class MyServlet extends HttpServlet {\n\n    @Override\n    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n        BufferedReader reader = req.getReader();\n        String jsonString = reader.readLine();\n\n        JsonArray jsonArr = new JsonArray();\n        jsonArr.add(jsonString);\n\n        int[] javaArray = gson.fromJson(jsonArr, int[].class);\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava \u600e\u4e48\u63a5\u53d7js\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 java \u63a5\u6536 javascript \u6570\u7ec4\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a1. \u901a\u8fc7 json\uff1a\u5c06 javascript \u6570\u7ec4\u8f6c\u6362\u4e3a json \u5b57\u7b26\u4e32\uff0c\u5728 java \u4e2d\u4f7f\u7528 json \u89e3\u6790\u5668\u5c06\u5176\u89e3\u6790\u4e3a\u6570\u7ec4\u30022. \u901a\u8fc7 xmlhttprequest\uff1a\u4f7f\u7528 xmlhttprequest \u53d1\u9001\u6570\u7ec4\uff0c\u5728 java \u4e2d\u4f7f\u7528 servlet \u63a5\u6536\u8bf7\u6c42\u5e76\u63d0\u53d6\u6570\u7ec4\u3002 \u5982\u4f55\u4f7f\u7528 Java \u63a5\u6536 JavaScript \u6570\u7ec4 \u5728 Java \u4e2d\u63a5\u6536 JavaScript \u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff1a 1. \u4f7f\u7528 JSON JSON\uff08JavaScript \u5bf9\u8c61\u8868\u793a\u6cd5\uff09\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u6570\u636e\u4ea4\u6362\u683c\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5728 JavaScript \u548c Java \u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u8981\u4f7f\u7528 JSON \u63a5\u6536 JavaScript \u6570\u7ec4\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5728 JavaScript \u4e2d\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a JSON \u5b57\u7b26\u4e32\uff1a const jsArray = [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-65312","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=65312"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65312\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}