SpringCloud JPA<\/h1>\n<\/p><\/div>\n

\n \u8ba9\u6211\u4eec\u770b\u770b\u5982\u4f55\u5c06\u5fae\u670d\u52a1\u8fde\u63a5\u5230H2\u6570\u636e\u5e93\u3002\u8bf7\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u5c06\u5fae\u670d\u52a1\u8fde\u63a5\u5230JPA\u5185\u5b58\u6570\u636e\u5e93\u3002\n <\/div>\n

\n \u6b65\u9aa41: <\/strong>\u6253\u5f00
\n currency-exchange--\u7684 pom.xml <\/strong>\u670d\u52a1<\/strong>\uff0c\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u4e24\u4e2a\u4f9d\u8d56\u9879\u3002\n <\/div>\n
\n
\r\n<dependency>\r\n<groupId>com.h2database<\/groupId>\r\n<artifactId>h2<\/artifactId>\r\n<version>1.4.197<\/version>\r\n<scope>test<\/scope>\r\n<\/dependency>\r\n<dependency>\r\n<groupId>org.springframework.boot<\/groupId>\r\n<artifactId>spring-boot-starter-data-jpa<\/artifactId>\r\n<version>2.1.3.RELEASE<\/version>\r\n<\/dependency>\r\n<\/pre>\n<\/code>\n <\/div>\n \n \u6dfb\u52a0\u4f9d\u8d56\u9879\u540e\uff0c\u73b0\u5728\u6211\u4eec\u5fc5\u987b\u5b9a\u4e49 \n \u5b9e\u4f53<\/strong>\u3002\n <\/div>\n\n \u6b65\u9aa42: <\/strong>\u6253\u5f00 \n ExchangeValue.java <\/strong>\u6587\u4ef6\u5e76\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c:\n <\/div>\n \u5728\u8bfe\u7a0b\u7ea7\u522b\u6dfb\u52a0 @Entity <\/strong>\u6ce8\u91ca\u3002<\/span> \n \u4f7f\u7528\u6ce8\u91ca @Table <\/strong>\u5b9a\u4e49\u8868\u540d<\/strong>\u3002<\/span> \n \u901a\u8fc7\u6dfb\u52a0\u6ce8\u91ca @Id\u4e3a\u5b9e\u4f53\u5b9a\u4e49 Id <\/strong>\u3002<\/strong> <\/span> \n \u901a\u8fc7\u5728\u6bcf\u4e2a\u5b57\u6bb5\u4e0a\u65b9\u6dfb\u52a0\u6ce8\u91ca @Column <\/strong>\u6765\u5b9a\u4e49\u5217\uff0c\u5e76\u6307\u5b9a\u5217\u540d\u79f0\u3002<\/span> <\/p>\n \n ExchangeValue.java <\/strong>\n <\/div>\n\n\r\npackage <\/span>com.lidihuo.microservices.currencyexchangeservice;\r\nimport java.math.BigDecimal;\r\nimport javax.persistence.Column;\r\nimport javax.persistence.Entity;\r\nimport javax.persistence.Id;\r\nimport javax.persistence.Table;\r\n@Entity\r\n@Table(name=\"Exchange_Value\"<\/span>)\r\npublic <\/span>class <\/span>ExchangeValue \r\n{\r\n@Id\r\n@Column(name=\"id\"<\/span>)\r\nprivate <\/span>long <\/span>id;\r\n@Column(name=\"currency_from\"<\/span>)\r\nprivate <\/span>String from;\r\n@Column(name=\"currency_to\"<\/span>)\r\nprivate <\/span>String to;\r\n@Column(name=\"conversion_multiple\"<\/span>)\r\nprivate <\/span>BigDecimal conversionMultiple;\r\n@Column(name=\"port\"<\/span>)\r\nprivate <\/span>int <\/span>port;\r\n\/\/default <\/span>conatructor\r\npublic <\/span>ExchangeValue()\r\n{ \r\n}\r\n\/\/generating constructor using fields\r\npublic <\/span>ExchangeValue(long <\/span>id, String from, String to, BigDecimal conversionMultiple) \r\n{\r\nsuper();\r\nthis<\/span>.id = id;\r\nthis<\/span>.from = from;\r\nthis<\/span>.to = to;\r\nthis<\/span>.conversionMultiple = conversionMultiple;\r\n}\r\n\/\/generating getters and setters\r\npublic <\/span>int <\/span>getPort() \r\n{\r\nreturn <\/span>port;\r\n}\r\npublic void <\/span>setPort(int <\/span>port) \r\n{\r\nthis<\/span>.port = port;\r\n}\r\npublic <\/span>long <\/span>getId() \r\n{\r\nreturn <\/span>id;\r\n}\r\npublic <\/span>String getFrom() \r\n{\r\nreturn <\/span>from;\r\n}\r\npublic <\/span>String getTo() \r\n{\r\nreturn <\/span>to;\r\n}\r\npublic <\/span>BigDecimal getConversionMultiple() \r\n{\r\nreturn <\/span>conversionMultiple;\r\n}\r\n}\r\n<\/pre>\n<\/code>\n <\/div>\n \n \u6211\u4eec\u5df2\u7ecf\u521b\u5efa\u4e86\u5b9e\u4f53\uff0c\u73b0\u5728\u6211\u4eec\u5fc5\u987b\u5c06\u4e00\u4e9b\u6570\u636e\u63d2\u5165\u6570\u636e\u5e93\u4e2d\u3002\n <\/div>\n\n \u6b65\u9aa43: <\/strong>\u521b\u5efa \n data.sql <\/strong>\u6587\u4ef6\u4ee5\u5c06\u6570\u636e\u63d2\u5165\u6570\u636e\u5e93\u3002\n <\/div>\n\n \u53f3\u952e\u5355\u51fb\u6587\u4ef6\u5939 \n src\/main\/resources <\/strong>-> New-> File->\u63d0\u4f9b\u540d\u79f0 \n data.sql <\/strong>->\u5b8c\u6210\n <\/div>\n\n \u6b65\u9aa44: <\/strong>\u5c06\u6570\u636e\u63d2\u5165data.sql\u6587\u4ef6\u3002\u6211\u4eec\u63d2\u5165\u4e86\u4ee5\u4e0b\u6570\u636e:\n <\/div>\n\n data.sql <\/strong>\n <\/div>\n\n\r\ninsert into exchange_value(id,currency_from,currency_to,conversion_multiple,port)\r\nvalues(10001,'USD'<\/span>, 'INR'<\/span><\/span><\/span> ,65,0);\r\ninsert into exchange_value(id,currency_from,currency_to,conversion_multiple,port)\r\nvalues(10002,'EUR'<\/span>, 'INR' ,75,0);\r\ninsert into exchange_value(id,currency_from,currency_to,conversion_multiple,port)\r\nvalues(10003,'AUD'<\/span>, 'INR' ,25,0);\r\n<\/pre>\n<\/code>\n <\/div>\n \n \u6b65\u9aa45: <\/strong>\u6253\u5f00 \n application.properties <\/strong>\u6587\u4ef6\u5e76\u542f\u7528 \n H2\u63a7\u5236\u53f0\uff0c<\/strong>\u914d\u7f6e \n URL <\/strong>\u548c \n \u6570\u636e\u6e90<\/strong>\u3002\u9ed8\u8ba4\u7684JDBC URL\u4e3a \n testdb <\/strong>\u3002\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u81ea\u5df1\u7684JDBC URL\u3002\n <\/div>\n\n \u6211\u4eec\u5df2\u7ecf\u6307\u5b9a\u4e86JDBS URL: \n jdbc: h2: mem: lidihuo <\/strong>\n <\/div>\n\n application.properties <\/strong>\n <\/div>\n\n\r\nspring.application.name=currency-exchange-service\r\nserver.port=8000\r\nspring.jpa.show-sql=true\r\nspring.h2.console.enabled=true\r\nspring.datasource.platform=h2\r\nspring.datasource.url=jdbc:h2:mem:lidihuo\r\n<\/pre>\n<\/code>\n <\/div>\n \n \u6b65\u9aa46: <\/strong>\u91cd\u65b0\u542f\u52a8\u5e94\u7528\u7a0b\u5e8f\u3002\n <\/div>\n\n \u6b65\u9aa47: <\/strong>\u6253\u5f00\u6d4f\u89c8\u5668\u5e76\u8f93\u5165URI \n http:\/\/localhost : 8000\/currency-exchange\/from\/USD\/to\/INR <\/strong>\u3002\u5b83\u8fd4\u56de\u54cd\u5e94\uff0c\u5982\u4e0b\u6240\u793a:\n <\/div>\n <\/p>\n \n \u6211\u4eec\u8fd8\u53ef\u4ee5\u770b\u5230\u5df2\u63d2\u5165 \n data.sql <\/strong>\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002\u8981\u6253\u5f00H2\u63a7\u5236\u53f0\uff0c\u6211\u4eec\u5fc5\u987b\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c:\n <\/div>\n \u5728\u6d4f\u89c8\u5668\u4e2d\uff0c\u8f93\u5165 http:\/\/localhost:8000\/h2-console\u3002\u5b83\u663e\u793a\u4ee5\u4e0b\u9875\u9762: <\/span> \n <\/p>\n \n \u8bb0\u4f4f:<\/strong> \n JDBC URL <\/strong>\u5fc5\u987b\u4e0e \n application.properties <\/strong>\u6587\u4ef6\u4e2d\u6307\u5b9a\u7684\u76f8\u540c\u3002\u4e0d\u8981\u5728 \n \u7528\u6237\u540d<\/strong>\u548c \n \u5bc6\u7801<\/strong>\u5b57\u6bb5\u4e2d\u8f93\u5165\u4efb\u4f55\u5185\u5bb9\u3002\u9ed8\u8ba4\u7528\u6237\u540d\u662f \n sa\u3002<\/strong>\n <\/div>\n\n \u73b0\u5728\uff0c\u70b9\u51fb \n Test Connection <\/strong>\u6309\u94ae \n \uff1b <\/strong>\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u5219\u4f1a\u663e\u793a\u6d88\u606f \n \u6d4b\u8bd5\u6210\u529f\u3002<\/strong>\n <\/div>\n <\/p>\n \n \u6b65\u9aa48: <\/strong> \u5355\u51fb \n Connect <\/strong>\u6309\u94ae\u3002\u5b83\u5728\u9875\u9762\u7684\u5de6\u4fa7\u663e\u793a\u4e86\u521b\u5efa\u7684\u8868\u3002\n <\/div>\n <\/p>\n \n \u6b65\u9aa49: <\/strong> \u8fd0\u884c\u4ee5\u4e0b\u67e5\u8be2\u4ee5\u67e5\u770b\u6570\u636e\u3002\n <\/div>\n\n\r\nSELECT *FROM EXCHANGE_VALUE;\r\n<\/pre>\n<\/code>\n <\/div>\n \n \u5b83\u663e\u793a\u6211\u4eec\u5df2\u63d2\u5165 \n data.sql <\/strong>\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u3002\n <\/div>\n <\/p>\n \n \u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u5185\u5b58\u6570\u636e\u5e93\uff0c\u5e76\u5728\u6570\u636e\u5e93\u4e2d\u63d2\u5165\u4e86\u4e00\u4e9b\u503c\u3002\n <\/div>\n \n <\/body> \n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"SpringCloud JPAzh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[],"class_list":["post-636","post","type-post","status-publish","format-standard","hentry","category-bc_springcloud_jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/636"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=636"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/636\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}