{"id":73,"date":"2021-01-06T17:52:13","date_gmt":"2021-01-06T09:52:13","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=73"},"modified":"2021-03-22T16:48:51","modified_gmt":"2021-03-22T08:48:51","slug":"java-%e5%93%8d%e5%ba%94-json","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-73.html","title":{"rendered":"java \u54cd\u5e94 json"},"content":{"rendered":"\n<h2>\u8bbe\u7f6e\u54cd\u5e94\u65b9\u5f0f<\/h2>\n\n\n\n<p>java \u670d\u52a1\u5668\u540e\u7aef\u54cd\u5e94 json \u6709 2 \u79cd\u65b9\u5f0f<\/p>\n\n\n\n<h5>1.\u76f4\u63a5\u8bbe\u7f6e response \u4e3a text\/html <\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>response.setContentType(\"text\/html;charset=utf-8\");<\/code><\/pre>\n\n\n\n<p>\u6b64\u65b9\u6cd5\uff0c\u9700\u8981\u5728 \u524d\u7aef\u7684 ajax \u4e2d\u8bbe\u7f6e\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e3a json<\/p>\n\n\n\n<h5>2.\u76f4\u63a5\u8bbe\u7f6e response \u4e3a application\/json<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>response.setContentType(\"application\/json;charset=utf-8\");<\/code><\/pre>\n\n\n\n<p>\u6b64\u65b9\u6cd5\uff0c\u524d\u7aef\u4e0d\u9700\u8981\u6307\u5b9a\uff0cajax \u4f1a\u6839\u636e MIME \u683c\u5f0f\u81ea\u52a8\u5224\u65ad\u3002<\/p>\n\n\n\n<h2>\u54cd\u5e94Json\u5230\u5ba2\u6237\u7aef<\/h2>\n\n\n\n<p>\u8fd9\u91cc\u4ec5\u505a\u4e00\u4e2a\u793a\u4f8b, \u5f53\u67e5\u8be2\u7684\u7528\u6237\u4e3a\u7a7a\u65f6\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u6d88\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>        \/\/5.\u5982\u679c\u8fd4\u56de\u662fnull,\u5219\u8fd4\u56de\u4e00\u4e2ajson\u9519\u8bef\u6d88\u606f\n            \/\/5.1 \u8bbe\u7f6e\u9519\u8bef\u6d88\u606f\u5bf9\u8c61\n            Message msg = new Message(\"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\");\n            \/\/5.2 \u521b\u5efaJsonMapper\u5bf9\u8c61\n            ObjectMapper mapper = new ObjectMapper();\n            \/\/5.3 \u628a\u6d88\u606f\u5bf9\u8c61\u8f6c\u6362\u4e3ajson\u5b57\u7b26\u4e32, \u5e76\u4f20\u9012\u5230\u5ba2\u6237\u7aef\n            mapper.writeValue(response.getWriter(),msg);<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u4f7f\u7528 writeValueAsString, \u53ef\u4ee5\u5206\u6210 2 \u6b65, \u5148\u5f97\u5230json,\u518d\u5199\u56de<\/p>\n\n\n\n<ul><li>String json = mapper.writeValueAsString(msg);<\/li><li>response.getWriter().write(json);<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u8bbe\u7f6e\u54cd\u5e94\u65b9\u5f0f java \u670d\u52a1\u5668\u540e\u7aef\u54cd\u5e94 json \u6709 2 \u79cd\u65b9\u5f0f 1.\u76f4\u63a5\u8bbe\u7f6e response \u4e3a text&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-73.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">java \u54cd\u5e94 json<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/73"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=73"}],"version-history":[{"count":3,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/73\/revisions"}],"predecessor-version":[{"id":1234,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/73\/revisions\/1234"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=73"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=73"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=73"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}