{"id":450,"date":"2017-10-27T14:18:59","date_gmt":"2017-10-27T06:18:59","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=450"},"modified":"2017-10-27T14:18:59","modified_gmt":"2017-10-27T06:18:59","slug":"mycat1-6%e5%b8%a6%e8%bf%94%e5%9b%9e%e5%8f%82%e6%95%b0%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b%e8%b0%83%e7%94%a8%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=450","title":{"rendered":"MyCat1.6\u5e26\u8fd4\u56de\u53c2\u6570\u5b58\u50a8\u8fc7\u7a0b\u8c03\u7528\u793a\u4f8b"},"content":{"rendered":"
\u672c\u4f8b\u73af\u5883\uff1aSpringMVC3.x + Mybatis3.x + Mycat1.6 + Mysql5.6<\/div>\n

1\u3001\u521b\u5efa\u5e26\u51fa\u53c2\u5b58\u50a8\u8fc7\u7a0b<\/p>\n

\n
\n
[sql]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n
<\/embed><\/div>\n<\/div>\n<\/div>\n
    \n
  1. DELIMITER\u00a0&&<\/li>\n
  2. CREATE<\/span>\u00a0\u00a0PROCEDURE<\/span>\u00a0`test_proc`(\u00a0in<\/span>\u00a0a_id\u00a0int<\/span>\u00a0,\u00a0out<\/span>\u00a0a_goods_id\u00a0int<\/span>)<\/li>\n
  3. BEGIN<\/span><\/li>\n
  4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0SELECT<\/span>\u00a0\u00a0a.goods_id\u00a0\u00a0INTO<\/span>\u00a0\u00a0a_goods_id<\/li>\n
  5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0FROM<\/span>\u00a0\u00a0es_goods_community\u00a0a<\/li>\n
  6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0WHERE<\/span>\u00a0\u00a0a.id=a_id\u00a0;<\/li>\n
  7. END<\/span>\u00a0&&<\/li>\n
  8. <\/li>\n
  9. DELIMITER\u00a0;<\/li>\n<\/ol>\n<\/div>\n

    \u5907\u6ce8\uff1a\u8fd9\u91cc\u7684\u5b58\u50a8\u8fc7\u7a0b\u6bd4\u8f83\u7b80\u5355\uff0c\u5c31\u662f\u6839\u636e\u4e00\u4e2a\u8868\u7684ID\uff0c\u8fd4\u56de\u4e00\u4e2a\u8868\u7684\u53e6\u5916\u4e00\u4e2a\u5b57\u6bb5\uff0c\u672c\u4f8b\u4e2da_goods_id\u4e3a\u51fa\u53c2\u3002
    \n2\u3001mybatis\u6620\u5c04\u6587\u4ef6<\/p>\n

    \n
    \n
    [html]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n
    <\/embed><\/div>\n<\/div>\n<\/div>\n
      \n
    1. <<\/span>select<\/span>\u00a0id<\/span>=“testCallProc”<\/span>\u00a0resultType<\/span>=“java.lang.Integer”<\/span>><\/span>\u00a0\u00a0<!–\u00a0statementType=”CALLABLE”\u00a0–><\/span><\/li>\n
    2. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<![CDATA[<\/span><\/li>\n
    3. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/*!mycat:sql=select\u00a01\u00a0from\u00a0es_goods_community\u00a0where\u00a0seller_id=26*\/{call\u00a0test_proc(<\/span><\/li>\n
    4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0#{id,mode=IN,jdbcType=INTEGER},<\/span><\/li>\n
    5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0@goodsId<\/span><\/li>\n
    6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0)};select\u00a0@goodsId;<\/span><\/li>\n
    7. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0]]><\/span><\/li>\n
    8. <\/li>\n
    9. \u00a0\u00a0\u00a0\u00a0<\/<\/span>select<\/span>><\/span><\/li>\n<\/ol>\n<\/div>\n
      \u8fd9\u91cc\u7684\u5173\u952e\uff1astatementType=”CALLABLE”\u4e0d\u9700\u8981\u52a0\u4e0a\uff0c\u800c\u662f\u628a\u5b58\u50a8\u8fc7\u7a0b\u5f53\u6210\u4e00\u6761\u666e\u901a\u7684SQL\u8bed\u53e5\uff0c\u53d1\u9001\u7ed9mycat\u6267\u884c\uff0cmycat\u6839\u636e\u6ce8\u89e3\u8def\u7531\u5230\u5177\u4f53\u7684\u540e\u7aef\u8282\u70b9\uff0c\u7136\u540e\u6267\u884c\u4e4b\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\uff0c\u8fd8\u9700\u8981\u5728\u540e\u9762\u4f7f\u7528selelect\u8bed\u53e5\u8fd4\u56deOUT\u53c2\u6570\u3002\u5728call\u8bed\u53e5\u4e2d\uff0c\u51fa\u53c2\u7528@\u52a0\u53d8\u91cf\u540d\u5b9a\u4e49\uff0c\u540d\u5b57\u4e0eselect\u8bed\u53e5\u4e2d\u7684\u540d\u5b57\u4fdd\u6301\u4e00\u6837\u5373\u53ef\u3002<\/div>\n
      \u4e3a\u4ec0\u4e48\u8981\u8fd9\u6837\u5199\u5462\uff1f\u539f\u56e0\u5982\u4e0b\uff1a<\/div>\n
      1\u3001mycat\u5df2\u7ecf\u58f0\u660e\uff0c\u5b58\u50a8\u8fc7\u7a0b\u7684\u8c03\u7528\u901a\u8fc7\u6ce8\u89e3\u6765\u652f\u6301\uff08\u4e3b\u8981\u539f\u56e0\uff0c\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\u7684\u8bed\u53e5\u65e0\u6cd5\u5b9a\u4f4d\u8def\u7531\u4fe1\u606f\uff09\uff0c\u5982\u679cstatementType=”CALLABLE”,mysql\u5ba2\u6237\u7aef\uff08\u672c\u4f8b\u6307mysql\u9a71\u52a8\u5305\uff09\u4f1a\u628a\u8bed\u53e5\u5f53\u5b58\u50a8\u8fc7\u7a0b\u6765\u770b\u5230\uff0c\u52bf\u5fc5\u9700\u8981\u77e5\u9053\u5b58\u50a8\u8fc7\u7a0b\u7684\u5143\u6570\u636e\uff08\u51fa\u53c2\u5217\u8868\uff09\u3002\u6545\u5728mybatis\u6587\u4ef6\u4e2d\uff0ccall\u8bed\u53e5\u4e4b\u524d\u9700\u8981\u5f85\u4e0a\u6ce8\u89e3\uff0c\u4f46\u8fd9\u548cmycat\u9a71\u52a8\u5305\u5904\u7406\u5b58\u50a8\u8fc7\u7a0b\u7684\u4ee3\u7801\u4ea7\u751f\u4e86\u77db\u76fe\uff0c\u5982\u4e0b\u4ee3\u7801\uff1a<\/div>\n
      \n
      \n
      [java]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n
      <\/embed><\/div>\n<\/div>\n<\/div>\n
        \n
      1. public<\/span>\u00a0CallableStatement(MySQLConnection\u00a0conn,\u00a0String\u00a0sql,\u00a0String\u00a0catalog,<\/li>\n
      2. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0boolean<\/span>\u00a0isFunctionCall)\u00a0throws<\/span>\u00a0SQLException\u00a0{<\/li>\n
      3. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0super<\/span>(conn,\u00a0sql,\u00a0catalog);<\/li>\n
      4. <\/li>\n
      5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0this<\/span>.callingStoredFunction\u00a0=\u00a0isFunctionCall;<\/li>\n
      6. <\/li>\n
      7. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(!this<\/span>.callingStoredFunction)\u00a0{<\/li>\n
      8. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(!StringUtils.startsWithIgnoreCaseAndWs(sql,\u00a0“CALL”<\/span>))\u00a0{\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0@1<\/span><\/li>\n
      9. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0not\u00a0really\u00a0a\u00a0stored\u00a0procedure\u00a0call<\/span><\/li>\n
      10. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0fakeParameterTypes(false<\/span>);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/@2<\/span><\/li>\n
      11. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\u00a0else<\/span>\u00a0{<\/li>\n
      12. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0determineParameterTypes();\u00a0\u00a0\/\/@3<\/span><\/li>\n
      13. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
      14. <\/li>\n
      15. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0generateParameterMap();<\/li>\n
      16. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\u00a0else<\/span>\u00a0{<\/li>\n
      17. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0determineParameterTypes();<\/li>\n
      18. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0generateParameterMap();<\/li>\n
      19. <\/li>\n
      20. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0this<\/span>.parameterCount\u00a0+=\u00a01<\/span>;<\/li>\n
      21. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
      22. <\/li>\n
      23. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0this<\/span>.retrieveGeneratedKeys\u00a0=\u00a0true<\/span>;\u00a0\/\/\u00a0not\u00a0provided\u00a0for\u00a0in\u00a0the\u00a0JDBC\u00a0spec<\/span><\/li>\n
      24. \u00a0\u00a0\u00a0\u00a0}<\/li>\n<\/ol>\n<\/div>\n
        \u4ee3\u7801\u6765\u6e90\u4e0emysql-connector-java-5.1.30.jar\u4e2dCallableStatement\uff0c\u73b0\u5728\u505a\u4e2a\u7b80\u5355\u7684\u89e3\u8bfb\uff1a<\/div>\n
        \u4ee3\u7801@1\uff0c\u5224\u65adSQL\u8bed\u53e5\u662f\u5426\u4ee5CALL\u8bed\u53e5\u5f00\u5934\uff0c\u5982\u679c\u4e0d\u662f\uff0c\u5219\u8c03\u7528\u4ee3\u7801@2fakeParameterTypes\u65b9\u6cd5\uff0c \u6211\u53ef\u4ee5\u5f88\u8d1f\u8d23\u4efb\u4eba\u7684\u544a\u8bc9\u4f60\uff0c\u8be5\u65b9\u6cd5\u53ea\u662f\u56fa\u5b9a\u8fd4\u56de\u4e00\u4e2a\u53c2\u6570\u5217\u8868\uff0c\u5b8c\u5168\u4e0e\u8c03\u7528\u7684\u5b58\u50a8\u8fc7\u7a0b\u7684\u51fa\u53c2\u5217\u8868\u4e0d\u5339\u914d<\/div>\n
        \u4ee3\u7801@3\uff0c\u8c03\u7528\u540e\u7aef\u8fde\u63a5\uff0c\u5f97\u5230\u5b58\u50a8\u8fc7\u7a0b\u7684\u6e90\u4fe1\u606f\uff1a\u53d1\u9001\u7684\u8bed\u53e5\u4e3a\uff1aSELECT\u00a0name,\u00a0type,\u00a0comment\u00a0FROM\u00a0mysql.proc\u00a0WHERE\u00a0name\u00a0like\u00a0‘\u5b58\u50a8\u8fc7\u7a0b\u540d’\u00a0and\u00a0db\u00a0<=>\u00a0‘\u6570\u636e\u5e93\u540d’\u00a0ORDER\u00a0BY\u00a0name,\u00a0type\uff1b<\/div>\n
        \u4f46mycat\u7684\u5904\u7406\u5982\u4e0b\uff1aio.mycat.server.ServerConnection\u00a0\u7684public\u00a0void\u00a0execute(String\u00a0sql,\u00a0int\u00a0type)\u00a0\u65b9\u6cd5\uff1a<\/div>\n

        \"\"<\/p>\n

        \u8ddf\u8fdbMysqlProcHandler.handle\u65b9\u6cd5\u5f97\u77e5\uff0cmycat\u53ea\u662f\u8fd4\u56de\u7a7a\u6570\u636e\u7ed9\u524d\u7aef\u8fde\u63a5\uff0c\u5e76\u6ca1\u6709\u53bb\u540e\u7aef\u6267\u884c\u8be5\u8bed\u53e5\u3002\u6240\u4ee5\uff0cmybatis\u914d\u7f6e\u6587\u4ef6\u7684statementType\u4e0d\u80fd\u966a\u5728\u4e3aCALLABLE\u7684\u539f\u56e0\u3002<\/div>\n
        <\/div>\n
        3\u3001DAO\u4e0e\u63a7\u5236\u5c42\u7684\u4ee3\u7801\u5c31\u5728\u8fd9\u91cc\u7701\u7565\u3002\u5b8c\u6574\u7684\u4ee3\u7801\u5982\u4e0b\uff1ahttp:\/\/git.oschina.net\/zhcsoft\/StudyDemo<\/a>\u00a0 \u5305\u8def\u5f84\u4e3a\uff1apersistent.<\/strong>prestige.web\u4e0b\u3002<\/div>\n
        <\/div>\n
        \u5907\u6ce8\uff1a\u4e0d\u80fd\u5728mysql\u5ba2\u6237\u7aef\u8fde\u63a5\u5de5\u5177\uff08\u8fde\u63a5mycat\uff09\u4e2d\u76f4\u63a5\u8fd0\u884c\uff1a<\/div>\n
        \n
        call\u00a0test_proc(140,@goodsId)};select\u00a0@goodsId;\u5f97\u4e0d\u5230\u6b63\u786e\u7684\u6570\u636e\u539f\u56e0\u5206\u6790\uff1a<\/div>\n
        \u56e0\u4e3a\u5728\u5ba2\u6237\u7aef\u67e5\u8be2\u5206\u6790\u5668\u4e2d\u6267\u884c\u8be5\u547d\u4ee4\uff0c\uff0c\u662f\u5206\u4e24\u6761\u8bed\u53e5 call test_proc(140,@goodsId); \u00a0select @goodsId;\u4e24\u6761\u547d\u4ee4\u53d1\u9001\u7ed9mycat\u6267\u884c\u7684\uff0c\u8fd9\u6837\u53d1\u9001\u5230\u540e\u7aef\u7684\u8fde\u63a5\uff0c\u4e24\u6b21\u4e0d\u4e00\u5b9a\u4f7f\u7528\u76f8\u540c\u7684Connection\u8fde\u63a5\uff0c\u6240\u4ee5\u65e0\u6cd5\u5f97\u5230\u503c\uff0c<\/div>\n
        \u00a0call test_proc(140,@goodsId); \u00a0select @goodsId; \u5fc5\u987b\u5f53\u6210\u4e00\u4e2amulti-statement\u8bed\u53e5\u4e00\u8d77\u53d1\u9001\u7ed9mycat\uff0c\u624d\u80fd\u6b63\u786e\u5f97\u5230\u7ed3\u679c\u3002<\/div>\n
        <\/div>\n
        \u518d\u6b21\u58f0\u660e\uff1a\u5b8c\u6574\u7684\u793a\u4f8b\u4ee3\u7801\u5730\u5740\uff1ahttp:\/\/git.oschina.net\/zhcsoft\/StudyDemo<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        \u672c\u4f8b\u73af\u5883\uff1aSpringMVC3.x + Mybatis3.x + Mycat1.6 + Mysql5.6 1\u3001\u521b\u5efa\u5e26\u51fa\u53c2\u5b58\u50a8\u8fc7\u7a0b [sql]\u00a0view plain\u00a0copy DELIMITER\u00a0&& CREATE\u00a0\u00a0PROCEDURE\u00a0`test_proc`(\u00a0in\u00a0a_id\u00a0int\u00a0,\u00a0out\u00a0a_goods_id\u00a0int) BEGIN \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0SELECT\u00a0\u00a0a.goods_id\u00a0\u00a0INTO\u00a0\u00a0a_goods_id \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0FROM\u00a0\u00a0es_goods_community\u00a0a \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0WHERE\u00a0\u00a0a.id=a_id\u00a0; END\u00a0&& DELIMITER\u00a0; \u5907\u6ce8\uff1a\u8fd9\u91cc\u7684\u5b58\u50a8\u8fc7\u7a0b\u6bd4\u8f83\u7b80\u5355\uff0c\u5c31\u662f\u6839\u636e\u4e00\u4e2a\u8868\u7684ID\uff0c\u8fd4\u56de\u4e00\u4e2a\u8868\u7684\u53e6\u5916\u4e00\u4e2a\u5b57\u6bb5\uff0c\u672c\u4f8b\u4e2da_goods_id\u4e3a\u51fa\u53c2\u3002 2\u3001mybatis\u6620\u5c04\u6587\u4ef6 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