{"id":172046,"date":"2020-10-21T19:55:24","date_gmt":"2020-10-21T11:55:24","guid":{"rendered":"http:\/\/4563.org\/?p=172046"},"modified":"2020-10-21T19:55:24","modified_gmt":"2020-10-21T11:55:24","slug":"%e8%af%b7%e6%95%99-springboot-%e4%b8%ad-priorityordered-%e8%bf%99%e4%b8%aa%e6%8e%a5%e5%8f%a3%ef%bc%8c%e5%ae%83%e7%9a%84%e6%b3%a8%e9%87%8a%e7%9a%84%e5%90%8e%e5%8d%8a%e6%ae%b5%e4%b8%8d%e5%a4%aa%e7%90%86","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=172046","title":{"rendered":"\u8bf7\u6559 SpringBoot \u4e2d PriorityOrdered \u8fd9\u4e2a\u63a5\u53e3\uff0c\u5b83\u7684\u6ce8\u91ca\u7684\u540e\u534a\u6bb5\u4e0d\u592a\u7406\u89e3\u610f\u601d"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u8bf7\u6559 SpringBoot \u4e2d PriorityOrdered \u8fd9\u4e2a\u63a5\u53e3\uff0c\u5b83\u7684\u6ce8\u91ca\u7684\u540e\u534a\u6bb5\u4e0d\u592a\u7406\u89e3\u610f\u601d               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : Newyorkcity <\/span>  <span><i><\/i> 2<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p><code>org.springframework.core.PriorityOrdered<\/code><\/p>\n<blockquote>\n<p>Extension of the Ordered interface, expressing a priority ordering: PriorityOrdered objects are always applied before plain Ordered objects regardless of their order values.<\/p>\n<\/blockquote>\n<blockquote>\n<p><strong>When sorting a set of Ordered objects, PriorityOrdered objects and plain Ordered objects are effectively treated as two separate subsets, with the set of PriorityOrdered objects preceding the set of plain Ordered objects and with relative ordering applied within those subsets.<\/strong><\/p>\n<\/blockquote>\n<p>\u8fd9\u4e24\u6bb5\u8fd8\u662f\u597d\u61c2\u7684\u3002\u5c31\u662f\u5b9e\u73b0\u4e86 <code>PriorityOrdered<\/code> \u63a5\u53e3\u7684 objects \u4e00\u5b9a\u5728\u53ea\u662f\u5b9e\u73b0\u4e86 <code>Ordered<\/code> \u63a5\u53e3\u7684 objects \u524d\u3002\u5728\u5176\u5185\u90e8\u518d\u6309\u7167 <code>getOrder()<\/code> \u7684\u503c\u6765\u6392\u5e8f\u3002<\/p>\n<p>\u540e\u4e24\u6bb5\u5c31\u4e0d\u662f\u5f88\u660e\u767d\uff0c\u60f3\u8bf7\u6559\u5404\u4f4d\uff1a<\/p>\n<blockquote>\n<p>This is primarily a special-purpose interface, used within the framework itself for objects where it is particularly important to recognize prioritized objects first, potentially without even obtaining the remaining objects. A typical example: prioritized post-processors in a Spring ApplicationContext.<\/p>\n<\/blockquote>\n<blockquote>\n<p>Note: PriorityOrdered post-processor beans are initialized in a special phase, ahead of other post-processor beans. This subtly affects their autowiring behavior: they will only be autowired against beans which do not require eager initialization for type matching.<\/p>\n<\/blockquote>\n<p>\u611f\u89c9\u4e0a\u50cf\u662f\u5728\u8bf4\u8fd9\u4e2a\u63a5\u53e3\u7528\u4e8e Spring \u6846\u67b6\u5185\u90e8\uff0c\u5982\u679c\u4f60\u4e0d\u662f Spring \u6846\u67b6\u5f00\u53d1\u8005\u6700\u597d\u522b\u7528\u8fd9\u4e2a\u63a5\u53e3\uff1f<\/p>\n<p>\u7136\u540e Spring \u6846\u67b6\u5185\u90e8\u5bf9\u8fd9\u4e2a\u63a5\u53e3\u6700\u7ecf\u5178\u7684\u5e94\u7528\u5c31\u662f\u5728 post-processors \u4e0a\u3002BeanPostProcessor \uff1f<\/p>\n<p>\u4e3b\u8981\u5c31\u662f <em>recognize prioritized objects first<\/em> \uff0c<em>they will only be autowired against beans which do not require eager initialization for type matching.<\/em> \u8fd9\u4e24\u53e5\u8bdd\u5bf9\u5e94\u7684\u5177\u4f53\u884c\u4e3a\u60f3\u4e0d\u5230\uff0c\u9ebb\u70e6\u5927\u4f6c\u4e3e\u4e2a\u4f8b\u5b50\uff1f<\/p>\n<p>\u8c22\u8c22<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>0<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>\u8bf7\u6559 SpringBoot \u4e2d P&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/172046"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=172046"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/172046\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=172046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=172046"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=172046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}