{"id":164280,"date":"2020-10-04T02:11:39","date_gmt":"2020-10-03T18:11:39","guid":{"rendered":"http:\/\/4563.org\/?p=164280"},"modified":"2020-10-07T23:17:26","modified_gmt":"2020-10-07T15:17:26","slug":"java-try-with-resource-%e9%9a%be%e5%8f%97","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=164280","title":{"rendered":"Java try with resource \u96be\u53d7"},"content":{"rendered":"
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Java try with resource \u96be\u53d7 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : cheneydog <\/span> <\/i> 4<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u4e4b\u524d\u628a try<\/code> \u90fd\u6539\u6210\u4e86 java try with resource<\/code> \u5f62\u5f0f\u3002\u73b0\u5728\u6709\u65b0\u9700\u6c42\uff0c\u53d1\u73b0\u65e0\u6cd5\u5b9e\u73b0\uff0c\u96be\u9053\u53c8\u8981\u6539\u56de\u6765\uff1f<\/p>\n

try( Handler api = getHandler() ) {     \/\/ \u505a\u70b9\u5565     api.getState();      } catch ( Exception e ){     log.error(\"getState {} \u65f6\u5f02\u5e38 {}\", api, e);          \/\/ [\u770b\u8fd9\u91cc]  \u6211\u60f3\u8981\u5728\u6267\u884c\u51fa\u9519\u7684\u60c5\u51b5\u4e0b\u591a\u505a\u4e00\u6b65\u64cd\u4f5c\uff0capi \u8fd9\u4e2a\u5bf9\u8c61\u7adf\u7136\u6ca1\u6cd5\u8bbf\u95ee\u5230\uff01\uff01\uff01     api.markDirty(); }  <\/code><\/pre>\n
\u8bf7\u6559\uff0c\u5982\u679c\u6211\u8981\u5728\u5f02\u5e38\u7684\u60c5\u51b5\u4e0b\u591a\u505a\u4e00\u70b9\u64cd\u4f5c\uff0c java try with resource<\/code> \u5f62\u5f0f\u662f\u4e0d\u662f\u5c31\u6ca1\u6cd5\u5199\u4e86\uff1f\uff1f\uff1f<\/p>\n
\u90a3\u4e5f\u592a\u9e21\u808b\u4e86\u3002\u3002\u3002<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (12<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : ChenFanlin <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 emmm \u7b2c\u4e00\u76f4\u89c9\u662f\u5728\u91cc\u9762\u518d\u5957\u4e2a try catch \u6765\u6267\u884c \"Java <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : glasslion <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 api \u5b9a\u4e49\u79fb\u5230\u5916\u9762\u53bb\u4e0d\u5c31\u884c\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : xiangyuecn <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 try( Handler api = getHandler() ) {<\/p>\n
    }<\/p>\n
    \u8fd9\u624d\u662f\u771f\u6b63\u7684 try with resource\uff0c\u79d1\u5b66\u70b9\uff1a<\/p>\n
    using( Handler api = getHandler() ){<\/p>\n
    }<\/p>\n
    \u5565\u4e5f\u4e0d\u662f\uff1a
    try(xxx){}catch(){}                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : lxk11153 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u94fe\u63a5\uff1a https:\/\/juejin.im\/post\/6844903517086285837
    > \u5728 Java 7 \u4e2d\uff0ctry-with-resouces \u8bed\u6cd5\u8981\u6c42\u4e3a\u6bcf\u4e00\u4e2a\u8d44\u6e90\u58f0\u660e\u4e00\u4e2a\u65b0\u7684\u53d8\u91cf\uff0c\u800c\u4e14\u8fd9\u4e9b\u8d44\u6e90\u7531 try-with-resources \u8bed\u53e5\u8fdb\u884c\u7ba1\u7406\u3002
    > \u5728 Java 9 \u4e2d\uff1a\u5982\u679c\u4e00\u4e2a\u8d44\u6e90\u88ab final \u6216\u8005\u7b49\u6548\u4e8e final \u53d8\u91cf\u5f15\u7528\uff0c\u5219\u5728\u4e0d\u9700\u8981\u58f0\u660e\u4e00\u4e2a\u65b0\u7684\u53d8\u91cf\u7684\u60c5\u51b5\u4e0b\uff0ctry-with-resources \u5c31\u53ef\u4ee5\u7ba1\u7406\u8fd9\u4e2a\u8d44\u6e90\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : tairan2006 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0d\u662f\u3002\u3002\u3002\u4f60\u8fd9\u628a try \u7684\u4e24\u79cd\u7528\u6cd5\u6df7\u5408\u53cc\u6253\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : ebony0319 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u597d\u50cf\u7ee7\u627f Closeable \u63a5\u53e3\uff0c\u7136\u540e\u91cd\u5199 close \u65b9\u6cd5\u5373\u53ef\u3002\u4f60\u8fd9\u79cd\u60c5\u51b5\u53ea\u9700\u8981\u91cd\u5199 close \u65b9\u6cd5\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : cheneydog <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @ebony0319 close \u6c38\u8fdc\u88ab\u6267\u884c\uff0c\u6211\u54ea\u91cc\u77e5\u9053\u6709\u6ca1\u6709\u53d1\u751f\u5f02\u5e38\u5462\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : cheneydog <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @lxk11153 \u6682\u65f6\u8fd8\u6ca1\u6cd5\u7528 jdk9                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : cheneydog <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @xiangyuecn \u770b\u4e0d\u61c2                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : lxk11153 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @cheneydog #8 \u5c42 2 \u4e0d\u662f\u5df2\u7ecf\u8bf4\u4e86\u5417\uff1f
    “`java
    Handler api;
    try( Handler _api = (api=getHandler()) ) {
    } catch (Exception e) {
     api.markDirty();
    }
    “`                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : lxk11153 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8fd8\u662f\u8fd9\u6837\u5427:
    “`java
    Handler api = getHandler();
    try( Handler _api = api ) {
    } catch (Exception e) {
     api.markDirty();
    }
    “`                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \n
     \u8cc7\u6df1\u5927\u4f6c : javapythongo <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5728 finaly \u624b\u52a8 close \u5c31\u662f\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    Java try with res…<\/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\/164280"}],"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=164280"}],"version-history":[{"count":1,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/164280\/revisions"}],"predecessor-version":[{"id":164282,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/164280\/revisions\/164282"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=164280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=164280"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=164280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}