{"id":1167,"date":"2017-07-12T16:40:31","date_gmt":"2017-07-12T08:40:31","guid":{"rendered":"http:\/\/www.kumouse.com\/?p=1167"},"modified":"2017-07-12T16:40:31","modified_gmt":"2017-07-12T08:40:31","slug":"mysql%e4%b8%8ejfinal%e7%9a%84%e6%95%b0%e6%8d%ae%e5%85%b3%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/www.kumouse.com\/?p=1167","title":{"rendered":"mysql\u4e0eJFinal\u7684\u6570\u636e\u5173\u7cfb"},"content":{"rendered":"<p>MySQL\u4e0ejfinal\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u4e00\u5b9a\u8981\u5f04\u6e05\u695a\u6570\u636e\u5173\u7cfb\uff0c\u5426\u5219\u5bb9\u6613\u53d1\u751f\u7c7b\u578b\u4e0d\u5339\u914d\u7684\u9519\u8bef\u3002<\/p>\n<p>\u4e00\u3001\u5173\u7cfb\u6574\u7406<\/p>\n<p>\u4e3a\u6b64\uff0c\u6211\u6839\u636ejfinal\u7684\u6e90\u7801\u548cmysql\u7684\u6570\u636e\u5b57\u6bb5\u7c7b\u578b\uff0c\u6574\u7406\u5217\u8868\u5982\u4e0b\uff1a<\/p>\n<p>mysql \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0jfinal \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u4f8b\u5b50 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u7f16\u53f7<br \/>\nvarchar, char, enum, set, text, tinytext, mediumtext, longtext \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0String \u00a0 \u00a0 \u00a0 \u00a0 \u00a0getStr(\u201cxxx\u201d) \u00a0 \u00a0 \u00a0 \u00a0 \u00a00001<br \/>\nint, integer, tinyint(n) n &gt; 1, smallint, mediumint \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 int \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 getInt(\u201cxxx\u201d) \u00a0 \u00a00002<br \/>\nbigint, unsign int \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 long getLong(\u201cxxx\u201d) 0003<br \/>\nunsigned bigint \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0BigInteger getBigInteger(\u201cxxx\u201d) 0004<br \/>\ndate, year \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Date getDate(\u201cxxx\u201d) 0005<br \/>\ntime \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Time getTime(\u201cxxx\u201d) 0006<br \/>\ntimestamp, datetime \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Timestamp getTimestamp(\u201cxxx\u201d) 0006<br \/>\nreal, double \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Double getDouble(\u201cxxx\u201d) 0007<br \/>\nfloat \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Float getFloat(\u201cxxx\u201d) 0008<br \/>\nbit, tinyint(1) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Boolean getBoolean(\u201cxxx\u201d) 0009<br \/>\ndecimal, numeric \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 BigDecimal getBigDecimal(\u201cxxx\u201d) 0010<br \/>\nbinary, varbinary, tinyblob, blob, mediumblob, longblob \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 byte[] getBytes(\u201cxxx\u201d) 0011<br \/>\nextends from Number \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Number getNumber(\u201cxxx\u201d) 0012<br \/>\n\u4e8c\u3001tinyint<\/p>\n<p>\u5728mysql\u4e2d\uff0ctinyint\uff08n\uff09\u4e2d\u7684n\u5bf9jfinal\u7684\u6570\u636e\u8f6c\u6362\u6709\u5f71\u54cd\uff1a<\/p>\n<p>n&gt;1\u65f6\uff0cjfinal\u8981\u4f7f\u7528getInt\u3002<br \/>\nn=1\u65f6\uff0cjfinal\u8981\u4f7f\u7528getBoolean\u3002<br \/>\n\u4e09\u3001unsigned<\/p>\n<p>\u5728mysql\u4e2dunsigned\u8868\u793a\u6709\u65e0\u7b26\u53f7\uff0c\u4e3e\u4f8b\u6765\u8bf4\uff1a<\/p>\n<p>unsigned int\uff0c\u8868\u793a\u6570\u636e&gt;0\uff0c\u4e0d\u5305\u542b\u8d1f\u6570\uff0c\u90a3\u4e48jfinal\u5c31\u8981\u4f7f\u7528getLong\u3002<br \/>\nunsigned bigint\uff0c\u8868\u793a\u6570\u636e&gt;0\uff0c\u4e0d\u5305\u542b\u8d1f\u6570\uff0c\u90a3\u4e48jfinal\u5c31\u8981\u4f7f\u7528getBigInteger\u3002<br \/>\n\u56db\u3001int(m)<\/p>\n<p>\u5173\u4e8emysql\u4e2dint(m)\u4e2d\u7684m\uff0c\u8fd9\u5f53\u7136\u5305\u542bbigint(m)\u7684m\u3002<\/p>\n<p>int[(m)]<br \/>\n\u6709\u7b26\u53f7\u503c\uff1a-2147683648 \u52302147683647\uff08- 231 \u5230231- 1\uff09<br \/>\n\u65e0\u7b26\u53f7\u503c\uff1a0\u52304294967295\uff080 \u5230232 &#8211; 1\uff09 4\u4e2a\u5b57\u8282<br \/>\n\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c\u4f60\u7684\u6570\u636e\u5b57\u6bb5\u662f\u8fd9\u6837\u5b50\u7684\u8bdd<\/p>\n<p>`uid` int(11) NOT NULL DEFAULT &#8216;0&#8217; COMMENT &#8216;\u7528\u6237id&#8217;<br \/>\n1<br \/>\n1<br \/>\n\u90a3\u4e48m=11\u662f\u6b63\u786e\u7684\uff0c\u56e0\u4e3a\u8003\u8651\u5230\u201c-\u201d\uff08\u8d1f\u6570\uff09\uff0c\u957f\u5ea6\u6700\u5927\u4e3a11\u4f4d\u3002<\/p>\n<p>\u800c\u5982\u679c\u4f60\u7684\u6570\u636e\u5b57\u6bb5\u662f\u8fd9\u6837\u5b50\u7684\u8bdd<\/p>\n<p>`uid` int(11) unsigned NOT NULL COMMENT &#8216;\u7528\u6237id&#8217;<br \/>\n1<br \/>\n1<br \/>\n\u90a3\u4e48m=11\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u56e0\u4e3a\u6700\u5927\u957f\u5ea6\u4e3a10\u4f4d\uff0c\u5982\u679c\u4f60\u6bd4\u8f83\u4e13\u4e1a\u7684\u8bdd\uff0c\u6b64\u65f6\uff0c\u4f60\u7684\u6570\u636e\u5b57\u6bb5\u5c31\u5e94\u8be5\u662f\u8fd9\u6837\u5b50\u7684<\/p>\n<p>`uid` int(10) unsigned NOT NULL COMMENT &#8216;\u7528\u6237id&#8217;<br \/>\n1<br \/>\n1<br \/>\n\u4e94\u3001jfinal\u7684api<\/p>\n<p>\u53ea\u770b\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>\/**<br \/>\n* Get attribute of mysql type: int, integer, tinyint(n) n &gt; 1, smallint, mediumint<br \/>\n*\/<br \/>\npublic Integer getInt(String attr) {<br \/>\nreturn (Integer)attrs.get(attr);<br \/>\n}<\/p>\n<p>\/**<br \/>\n* Get attribute of mysql type: bigint, unsign int<br \/>\n*\/<br \/>\npublic Long getLong(String attr) {<br \/>\nreturn (Long)attrs.get(attr);<br \/>\n}<br \/>\n1<br \/>\n2<br \/>\n3<br \/>\n4<br \/>\n5<br \/>\n6<br \/>\n7<br \/>\n8<br \/>\n9<br \/>\n10<br \/>\n11<br \/>\n12<br \/>\n13<\/p>\n<p>1<br \/>\n2<br \/>\n3<br \/>\n4<br \/>\n5<br \/>\n6<br \/>\n7<br \/>\n8<br \/>\n9<br \/>\n10<br \/>\n11<br \/>\n12<br \/>\n13<br \/>\n\u65b9\u6cd5\u5f88\u8be6\u7ec6\u7684\u4ecb\u7ecd\u4e86\u5e94\u8be5\u5339\u914d\u54ea\u4e00\u79cdmysql\u6570\u636e\u7c7b\u578b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u4e0ejfinal\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u4e00\u5b9a\u8981\u5f04\u6e05\u695a\u6570\u636e\u5173\u7cfb\uff0c\u5426\u5219\u5bb9\u6613\u53d1\u751f\u7c7b\u578b\u4e0d\u5339\u914d\u7684\u9519\u8bef\u3002 \u4e00\u3001\u5173\u7cfb\u6574\u7406 \u4e3a\u6b64 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-1167","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1167"}],"version-history":[{"count":2,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1167\/revisions"}],"predecessor-version":[{"id":1169,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1167\/revisions\/1169"}],"wp:attachment":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}