{"id":572,"date":"2024-02-21T07:30:19","date_gmt":"2022-12-29T21:16:29","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e6%98%a5%e5%ad%a3jdbc%e7%a4%ba%e4%be%8b\/"},"modified":"2025-08-02T19:36:24","modified_gmt":"2025-08-02T11:36:24","slug":"%e6%98%a5%e5%ad%a3jdbc%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%98%a5%e5%ad%a3jdbc%e7%a4%ba%e4%be%8b\/","title":{"rendered":"Spring JDBC\u6559\u7a0b\uff1aJava\u6570\u636e\u5e93\u8fde\u63a5\u4e0e\u64cd\u4f5c\u793a\u4f8b\u8be6\u89e3"},"content":{"rendered":"

\u672c\u6559\u7a0b\u7684\u4e3b\u9898\u662fSpring JDBC\u3002\u6570\u636e\u5e93\u662f\u5927\u591a\u6570\u4f01\u4e1a\u5e94\u7528\u7a0b\u5e8f\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u56e0\u6b64\uff0c\u5728\u6d89\u53caJava EE\u6846\u67b6\u65f6\uff0c\u4e0eJDBC\u6709\u826f\u597d\u7684\u96c6\u6210\u975e\u5e38\u91cd\u8981\u3002<\/p>\n

Spring\u662fJava\u5f00\u53d1\u4eba\u5458\u5e38\u7528\u7684JDBC\u6846\u67b6\u4e4b\u4e00<\/h2>\n

Spring Framework\u63d0\u4f9b\u4e86\u4e0eJDBC API\u7684\u51fa\u8272\u96c6\u6210\uff0c\u5e76\u63d0\u4f9b\u4e86JdbcTemplate\u5b9e\u7528\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u907f\u514d\u6570\u636e\u5e93\u64cd\u4f5c\u903b\u8f91\u4e2d\u7684\u6837\u677f\u4ee3\u7801\uff0c\u5982\u6253\u5f00\/\u5173\u95ed\u8fde\u63a5\u3001\u7ed3\u679c\u96c6\u3001\u9884\u7f16\u8bd1\u8bed\u53e5\u7b49\u3002\u8ba9\u6211\u4eec\u9996\u5148\u770b\u4e00\u4e2a\u7b80\u5355\u7684Spring JDBC\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\uff0c\u7136\u540e\u6211\u4eec\u5c06\u770b\u5230JdbcTemplate\u7c7b\u5982\u4f55\u5e2e\u52a9\u6211\u4eec\u8f7b\u677e\u7f16\u5199\u6a21\u5757\u5316\u4ee3\u7801\uff0c\u65e0\u9700\u62c5\u5fc3\u8d44\u6e90\u662f\u5426\u6b63\u786e\u5173\u95ed\u3002\u4f7f\u7528Spring Tool Suite\u5f00\u53d1\u57fa\u4e8eSpring\u7684\u5e94\u7528\u7a0b\u5e8f\u975e\u5e38\u6709\u5e2e\u52a9\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u4f7f\u7528STS\u6765\u521b\u5efa\u6211\u4eec\u7684Spring JDBC\u5e94\u7528\u7a0b\u5e8f\u3002\u6211\u4eec\u6700\u7ec8\u7684\u9879\u76ee\u7ed3\u6784\u5c06\u5982\u4e0b\u56fe\u6240\u793a\u3002\u4eceSTS\u83dc\u5355\u4e2d\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684Spring Maven\u9879\u76ee\uff0c\u60a8\u53ef\u4ee5\u9009\u62e9\u4efb\u4f55\u60a8\u559c\u6b22\u7684\u540d\u79f0\uff0c\u6216\u8005\u575a\u6301\u4f7f\u7528\u6211\u7684\u9879\u76ee\u540d\u79f0SpringJDBCExample\u3002<\/p>\n

Spring JDBC\u4f9d\u8d56<\/h3>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728Maven\u9879\u76ee\u7684pom.xml\u6587\u4ef6\u4e2d\u5305\u542bSpring JDBC\u548c\u6570\u636e\u5e93\u9a71\u52a8\u7a0b\u5e8f\u3002\u6700\u540e\uff0c\u6211\u7684pom.xml\u6587\u4ef6\u5982\u4e0b\u6240\u793a\u3002<\/p>\n

<project xmlns=\"https:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txsi:schemaLocation=\"https:\/\/maven.apache.org\/POM\/4.0.0 https:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd\">\r\n\t<modelVersion>4.0.0<\/modelVersion>\r\n\t<groupId>org.springframework.samples<\/groupId>\r\n\t<artifactId>SpringJDBCExample<\/artifactId>\r\n\t<version>0.0.1-SNAPSHOT<\/version>\r\n\r\n\t<properties>\r\n\r\n\t\t<!-- Generic properties -->\r\n\t\t<java.version>1.6<\/java.version>\r\n\t\t<project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>\r\n\t\t<project.reporting.outputEncoding>UTF-8<\/project.reporting.outputEncoding>\r\n\r\n\t\t<!-- Spring -->\r\n\t\t<spring-framework.version>4.0.2.RELEASE<\/spring-framework.version>\r\n\r\n\t\t<!-- Logging -->\r\n\t\t<logback.version>1.0.13<\/logback.version>\r\n\t\t<slf4j.version>1.7.5<\/slf4j.version>\r\n\r\n\t<\/properties>\r\n\r\n\t<dependencies>\r\n\t\t<!-- Spring and Transactions -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.springframework<\/groupId>\r\n\t\t\t<artifactId>spring-context<\/artifactId>\r\n\t\t\t<version>${spring-framework.version}<\/version>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.springframework<\/groupId>\r\n\t\t\t<artifactId>spring-tx<\/artifactId>\r\n\t\t\t<version>${spring-framework.version}<\/version>\r\n\t\t<\/dependency>\r\n\r\n\t\t<!-- Spring JDBC Support -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.springframework<\/groupId>\r\n\t\t\t<artifactId>spring-jdbc<\/artifactId>\r\n\t\t\t<version>${spring-framework.version}<\/version>\r\n\t\t<\/dependency>\r\n\t\t\r\n\t\t<!-- MySQL Driver -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>mysql<\/groupId>\r\n\t\t\t<artifactId>mysql-connector-java<\/artifactId>\r\n\t\t\t<version>5.0.5<\/version>\r\n\t\t<\/dependency>\r\n\r\n\t\t<!-- Logging with SLF4J & LogBack -->\r\n\t\t<dependency>\r\n\t\t\t<groupId>org.slf4j<\/groupId>\r\n\t\t\t<artifactId>slf4j-api<\/artifactId>\r\n\t\t\t<version>${slf4j.version}<\/version>\r\n\t\t\t<scope>compile<\/scope>\r\n\t\t<\/dependency>\r\n\t\t<dependency>\r\n\t\t\t<groupId>ch.qos.logback<\/groupId>\r\n\t\t\t<artifactId>logback-classic<\/artifactId>\r\n\t\t\t<version>${logback.version}<\/version>\r\n\t\t\t<scope>runtime<\/scope>\r\n\t\t<\/dependency>\r\n\r\n\t<\/dependencies>\r\n<\/project>\r\n<\/code><\/pre>\n
\u5927\u90e8\u5206\u90e8\u5206\u662f\u7531STS\u81ea\u52a8\u751f\u6210\u7684\uff0c\u7136\u800c\u6211\u5df2\u7ecf\u5c06Spring Framework\u7248\u672c\u66f4\u65b0\u4e3a\u6700\u65b0\u76844.0.2.RELEASE\u3002\u53e6\u5916\uff0c\u6211\u4eec\u8fd8\u6dfb\u52a0\u4e86\u6240\u9700\u7684artifacts spring-jdbc\u548cmysql-connector-java\u3002\u7b2c\u4e00\u4e2a\u5305\u542b\u4e86Spring JDBC\u652f\u6301\u7c7b\uff0c\u800c\u7b2c\u4e8c\u4e2a\u662f\u6570\u636e\u5e93\u9a71\u52a8\u7a0b\u5e8f\u3002\u6211\u6b63\u5728\u4f7f\u7528MySQL\u6570\u636e\u5e93\u8fdb\u884c\u6d4b\u8bd5\uff0c\u56e0\u6b64\u6211\u5df2\u7ecf\u6dfb\u52a0\u4e86MySQL JConnector jar\u4f9d\u8d56\u3002\u5982\u679c\u60a8\u4f7f\u7528\u5176\u4ed6RDBMS\uff0c\u5219\u5e94\u5728\u4f9d\u8d56\u9879\u4e2d\u8fdb\u884c\u76f8\u5e94\u7684\u66f4\u6539\u3002<\/p>\n
Spring JDBC\u793a\u4f8b – \u6570\u636e\u5e93\u8bbe\u7f6e<\/h3>\n
Spring JDBC\u793a\u4f8b – \u6570\u636e\u5e93\u914d\u7f6e<\/h3>\n
\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u8868\u683c\uff0c\u5728\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7528\u4e8e\u5c55\u793a\u589e\u5220\u6539\u67e5\u64cd\u4f5c\u7684\u793a\u4f8b\u3002<\/p>\n
CREATE TABLE `Employee` (\r\n  `id` int(11) unsigned NOT NULL,\r\n  `name` varchar(20) DEFAULT NULL,\r\n  `role` varchar(20) DEFAULT NULL,\r\n  PRIMARY KEY (`id`)\r\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\r\n<\/code><\/pre>\n
Spring JDBC\u793a\u4f8b – \u6a21\u578b\u7c7b<\/h3>\n
\u6211\u4eec\u5c06\u4f7f\u7528DAO\u6a21\u5f0f\u8fdb\u884cJDBC\u64cd\u4f5c\uff0c\u6240\u4ee5\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2aJava Bean\u6765\u5efa\u6a21\u6211\u4eec\u7684Employee\u8868\u683c\u3002<\/p>\n
package com.Olivia.spring.jdbc.model;\r\n\r\npublic class Employee {\r\n\r\n\tprivate int id;\r\n\tprivate String name;\r\n\tprivate String role;\r\n\t\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\tpublic void setId(int id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\tpublic String getRole() {\r\n\t\treturn role;\r\n\t}\r\n\tpublic void setRole(String role) {\r\n\t\tthis.role = role;\r\n\t}\r\n\t\r\n\t@Override\r\n\tpublic String toString(){\r\n\t\treturn \"{ID=\"+id+\",Name=\"+name+\",Role=\"+role+\"}\";\r\n\t}\r\n}\r\n<\/code><\/pre>\n
Spring JDBC\u793a\u4f8b – DAO\u63a5\u53e3\u548c\u5b9e\u73b0<\/h3>\n
\u5bf9\u4e8eDAO\u6a21\u5f0f\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u4e00\u4e2a\u58f0\u660e\u6211\u4eec\u60f3\u8981\u5b9e\u73b0\u7684\u6240\u6709\u64cd\u4f5c\u7684\u63a5\u53e3\u3002<\/p>\n
\u8fd9\u662f\u6587\u7ae0\u300aSpring JDBC\u793a\u4f8b\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51714\u90e8\u5206\uff09\u3002<\/p>\n
package com.Olivia.spring.jdbc.dao;\r\n\r\nimport java.util.List;\r\n\r\nimport com.Olivia.spring.jdbc.model.Employee;\r\n\r\n\/\/CRUD operations\r\npublic interface EmployeeDAO {\r\n\t\r\n\t\/\/Create\r\n\tpublic void save(Employee employee);\r\n\t\/\/Read\r\n\tpublic Employee getById(int id);\r\n\t\/\/Update\r\n\tpublic void update(Employee employee);\r\n\t\/\/Delete\r\n\tpublic void deleteById(int id);\r\n\t\/\/Get All\r\n\tpublic List<Employee> getAll();\r\n}\r\n<\/code><\/pre>\n
package com.Olivia.spring.jdbc.dao;\r\n\r\nimport java.sql.Connection;\r\nimport java.sql.PreparedStatement;\r\nimport java.sql.ResultSet;\r\nimport java.sql.SQLException;\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\nimport javax.sql.DataSource;\r\n\r\nimport com.Olivia.spring.jdbc.model.Employee;\r\n\r\npublic class EmployeeDAOImpl implements EmployeeDAO {\r\n\r\n\tprivate DataSource dataSource;\r\n\r\n\tpublic void setDataSource(DataSource dataSource) {\r\n\t\tthis.dataSource = dataSource;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void save(Employee employee) {\r\n\t\tString query = \"insert into Employee (id, name, role) values (?,?,?)\";\r\n\t\tConnection con = null;\r\n\t\tPreparedStatement ps = null;\r\n\t\ttry{\r\n\t\t\tcon = dataSource.getConnection();\r\n\t\t\tps = con.prepareStatement(query);\r\n\t\t\tps.setInt(1, employee.getId());\r\n\t\t\tps.setString(2, employee.getName());\r\n\t\t\tps.setString(3, employee.getRole());\r\n\t\t\tint out = ps.executeUpdate();\r\n\t\t\tif(out !=0){\r\n\t\t\t\tSystem.out.println(\"Employee saved with id=\"+employee.getId());\r\n\t\t\t}else System.out.println(\"Employee save failed with id=\"+employee.getId());\r\n\t\t}catch(SQLException e){\r\n\t\t\te.printStackTrace();\r\n\t\t}finally{\r\n\t\t\ttry {\r\n\t\t\t\tps.close();\r\n\t\t\t\tcon.close();\r\n\t\t\t} catch (SQLException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\t@Override\r\n\tpublic Employee getById(int id) {\r\n\t\tString query = \"select name, role from Employee where id = ?\";\r\n\t\tEmployee emp = null;\r\n\t\tConnection con = null;\r\n\t\tPreparedStatement ps = null;\r\n\t\tResultSet rs = null;\r\n\t\ttry{\r\n\t\t\tcon = dataSource.getConnection();\r\n\t\t\tps = con.prepareStatement(query);\r\n\t\t\tps.setInt(1, id);\r\n\t\t\trs = ps.executeQuery();\r\n\t\t\tif(rs.next()){\r\n\t\t\t\temp = new Employee();\r\n\t\t\t\temp.setId(id);\r\n\t\t\t\temp.setName(rs.getString(\"name\"));\r\n\t\t\t\temp.setRole(rs.getString(\"role\"));\r\n\t\t\t\tSystem.out.println(\"Employee Found::\"+emp);\r\n\t\t\t}else{\r\n\t\t\t\tSystem.out.println(\"No Employee found with id=\"+id);\r\n\t\t\t}\r\n\t\t}catch(SQLException e){\r\n\t\t\te.printStackTrace();\r\n\t\t}finally{\r\n\t\t\ttry {\r\n\t\t\t\trs.close();\r\n\t\t\t\tps.close();\r\n\t\t\t\tcon.close();\r\n\t\t\t} catch (SQLException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn emp;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void update(Employee employee) {\r\n\t\tString query = \"update Employee set name=?, role=? where id=?\";\r\n\t\tConnection con = null;\r\n\t\tPreparedStatement ps = null;\r\n\t\ttry{\r\n\t\t\tcon = dataSource.getConnection();\r\n\t\t\tps = con.prepareStatement(query);\r\n\t\t\tps.setString(1, employee.getName());\r\n\t\t\tps.setString(2, employee.getRole());\r\n\t\t\tps.setInt(3, employee.getId());\r\n\t\t\tint out = ps.executeUpdate();\r\n\t\t\tif(out !=0){\r\n\t\t\t\tSystem.out.println(\"Employee updated with id=\"+employee.getId());\r\n\t\t\t}else System.out.println(\"No Employee found with id=\"+employee.getId());\r\n\t\t}catch(SQLException e){\r\n\t\t\te.printStackTrace();\r\n\t\t}finally{\r\n\t\t\ttry {\r\n\t\t\t\tps.close();\r\n\t\t\t\tcon.close();\r\n\t\t\t} catch (SQLException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void deleteById(int id) {\r\n\t\tString query = \"delete from Employee where id=?\";\r\n\t\tConnection con = null;\r\n\t\tPreparedStatement ps = null;\r\n\t\ttry{\r\n\t\t\tcon = dataSource.getConnection();\r\n\t\t\tps = con.prepareStatement(query);\r\n\t\t\tps.setInt(1, id);\r\n\t\t\tint out = ps.executeUpdate();\r\n\t\t\tif(out !=0){\r\n\t\t\t\tSystem.out.println(\"Employee deleted with id=\"+id);\r\n\t\t\t}else System.out.println(\"No Employee found with id=\"+id);\r\n\t\t}catch(SQLException e){\r\n\t\t\te.printStackTrace();\r\n\t\t}finally{\r\n\t\t\ttry {\r\n\t\t\t\tps.close();\r\n\t\t\t\tcon.close();\r\n\t\t\t} catch (SQLException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\t@Override\r\n\tpublic List<Employee> getAll() {\r\n\t\tString query = \"select id, name, role from Employee\";\r\n\t\tList<Employee> empList = new ArrayList<Employee>();\r\n\t\tConnection con = null;\r\n\t\tPreparedStatement ps = null;\r\n\t\tResultSet rs = null;\r\n\t\ttry{\r\n\t\t\tcon = dataSource.getConnection();\r\n\t\t\tps = con.prepareStatement(query);\r\n\t\t\trs = ps.executeQuery();\r\n\t\t\twhile(rs.next()){\r\n\t\t\t\tEmployee emp = new Employee();\r\n\t\t\t\temp.setId(rs.getInt(\"id\"));\r\n\t\t\t\temp.setName(rs.getString(\"name\"));\r\n\t\t\t\temp.setRole(rs.getString(\"role\"));\r\n\t\t\t\tempList.add(emp);\r\n\t\t\t}\r\n\t\t}catch(SQLException e){\r\n\t\t\te.printStackTrace();\r\n\t\t}finally{\r\n\t\t\ttry {\r\n\t\t\t\trs.close();\r\n\t\t\t\tps.close();\r\n\t\t\t\tcon.close();\r\n\t\t\t} catch (SQLException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn empList;\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u5bf9\u4e8e\u5b9e\u73b0CRUD\u64cd\u4f5c\u975e\u5e38\u7b80\u5355\u6613\u61c2\u3002\u5982\u679c\u4f60\u60f3\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u6570\u636e\u6e90\u7684\u5185\u5bb9\uff0c\u8bf7\u9605\u8bfbJDBC\u6570\u636e\u6e90\u793a\u4f8b\u3002<\/p>\n
Spring JDBC\u793a\u4f8b-Bean\u914d\u7f6e<\/h3>\n
\u5982\u679c\u4f60\u67e5\u770b\u4e0a\u8ff0\u6240\u6709\u4ee3\u7801\uff0c\u5b83\u4eec\u90fd\u4f7f\u7528\u4e86\u6807\u51c6\u7684JDBC API\uff0c\u6ca1\u6709\u6d89\u53ca\u5230Spring JDBC\u6846\u67b6\u3002\u5f53\u6211\u4eec\u521b\u5efaSpring Bean\u914d\u7f6e\u6587\u4ef6\u5e76\u5b9a\u4e49bean\u65f6\uff0c\u5c31\u4f1a\u6d89\u53ca\u5230Spring JDBC\u6846\u67b6\u7684\u7c7b\u3002\u6211\u4eec\u4f1a\u5728Spring Bean\u4e0a\u4e0b\u6587\u6587\u4ef6\u4e2d\u521b\u5efaDataSource\uff0c\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3a\u6211\u4eec\u7684DAO\u5b9e\u73b0\u7c7b\u3002\u6211\u7684Spring Bean\u914d\u7f6e\u6587\u4ef6\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
\u8fd9\u662f\u6587\u7ae0\u300aSpring JDBC\u793a\u4f8b\u300b\u7684\u7b2c3\u90e8\u5206\uff08\u51714\u90e8\u5206\uff09\u3002<\/p>\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<beans xmlns=\"https:\/\/www.springframework.org\/schema\/beans\"\r\n\txmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txsi:schemaLocation=\"https:\/\/www.springframework.org\/schema\/beans https:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd\">\r\n\r\n\t<bean id=\"employeeDAO\" class=\"com.Olivia.spring.jdbc.dao.EmployeeDAOImpl\">\r\n\t\t<property name=\"dataSource\" ref=\"dataSource\" \/>\r\n\t<\/bean>\r\n\t\r\n\t<bean id=\"dataSource\" class=\"org.springframework.jdbc.datasource.DriverManagerDataSource\">\r\n\r\n\t\t<property name=\"driverClassName\" value=\"com.mysql.jdbc.Driver\" \/>\r\n\t\t<property name=\"url\" value=\"jdbc:mysql:\/\/localhost:3306\/TestDB\" \/>\r\n\t\t<property name=\"username\" value=\"scdev\" \/>\r\n\t\t<property name=\"password\" value=\"scdev123\" \/>\r\n\t<\/bean>\r\n\r\n<\/beans>\r\n<\/code><\/pre>\n
\u9996\u5148\uff0c\u6211\u4eec\u6b63\u5728\u521b\u5efa\u4e00\u4e2aDriverManagerDataSource\u7c7b\u7684DataSource\u5bf9\u8c61\u3002\u8be5\u7c7b\u63d0\u4f9b\u4e86\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7684DataSource\u7684\u57fa\u672c\u5b9e\u73b0\u3002\u6211\u4eec\u5c06MySQL\u6570\u636e\u5e93\u7684URL\u3001\u7528\u6237\u540d\u548c\u5bc6\u7801\u4f5c\u4e3a\u5c5e\u6027\u4f20\u9012\u7ed9DataSource bean\u3002\u518d\u6b21\uff0c\u5c06dataSource bean\u8bbe\u7f6e\u4e3aEmployeeDAOImpl bean\uff0c\u5e76\u51c6\u5907\u597d\u4e86\u6211\u4eec\u7684Spring JDBC\u5b9e\u73b0\u3002\u8be5\u5b9e\u73b0\u662f\u677e\u8026\u5408\u7684\uff0c\u5982\u679c\u6211\u4eec\u60f3\u8981\u5207\u6362\u5230\u5176\u4ed6\u5b9e\u73b0\u6216\u8fc1\u79fb\u5230\u5176\u4ed6\u6570\u636e\u5e93\u670d\u52a1\u5668\uff0c\u53ea\u9700\u8981\u5728bean\u914d\u7f6e\u4e2d\u8fdb\u884c\u76f8\u5e94\u7684\u66f4\u6539\u5373\u53ef\u3002\u8fd9\u662fSpring JDBC\u6846\u67b6\u63d0\u4f9b\u7684\u4e3b\u8981\u4f18\u52bf\u4e4b\u4e00\u3002<\/p>\n
Spring JDBC\u6d4b\u8bd5\u7c7b<\/h3>\n
\u8ba9\u6211\u4eec\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u6d4b\u8bd5\u7c7b\u6765\u786e\u4fdd\u4e00\u5207\u90fd\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n
package com.Olivia.spring.jdbc.main;\r\n\r\nimport java.util.List;\r\nimport java.util.Random;\r\n\r\nimport org.springframework.context.support.ClassPathXmlApplicationContext;\r\n\r\nimport com.Olivia.spring.jdbc.dao.EmployeeDAO;\r\nimport com.Olivia.spring.jdbc.model.Employee;\r\n\r\npublic class SpringMain {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\t\/\/\u83b7\u53d6Spring\u4e0a\u4e0b\u6587\r\n\t\tClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext(\"spring.xml\");\r\n\t\t\r\n\t\t\/\/\u83b7\u53d6EmployeeDAO Bean\r\n\t\tEmployeeDAO employeeDAO = ctx.getBean(\"employeeDAO\", EmployeeDAO.class);\r\n\t\t\r\n\t\t\/\/\u8fd0\u884c\u4e00\u4e9bJDBC CRUD\u64cd\u4f5c\u6d4b\u8bd5\r\n\t\tEmployee emp = new Employee();\r\n\t\tint rand = new Random().nextInt(1000);\r\n\t\temp.setId(rand);\r\n\t\temp.setName(\"Pankaj\");\r\n\t\temp.setRole(\"Java Developer\");\r\n\t\t\r\n\t\t\/\/\u521b\u5efa\r\n\t\temployeeDAO.save(emp);\r\n\t\t\r\n\t\t\/\/\u8bfb\u53d6\r\n\t\tEmployee emp1 = employeeDAO.getById(rand);\r\n\t\tSystem.out.println(\"\u68c0\u7d22\u5230\u7684\u5458\u5de5::\"+emp1);\r\n\t\t\r\n\t\t\/\/\u66f4\u65b0\r\n\t\temp.setRole(\"CEO\");\r\n\t\temployeeDAO.update(emp);\r\n\t\t\r\n\t\t\/\/\u83b7\u53d6\u6240\u6709\r\n\t\tList<Employee> empList = employeeDAO.getAll();\r\n\t\tSystem.out.println(empList);\r\n\t\t\r\n\t\t\/\/\u5220\u9664\r\n\t\temployeeDAO.deleteById(rand);\r\n\t\t\r\n\t\t\/\/\u5173\u95edSpring\u4e0a\u4e0b\u6587\r\n\t\tctx.close();\r\n\t\t\r\n\t\tSystem.out.println(\"\u5b8c\u6210\");\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u6211\u6b63\u5728\u4f7f\u7528Random\u7c7b\u6765\u751f\u6210\u5458\u5de5ID\u7684\u968f\u673a\u6570\u3002\u5f53\u6211\u4eec\u8fd0\u884c\u4e0a\u8ff0\u7a0b\u5e8f\u65f6\uff0c\u6211\u4eec\u5f97\u5230\u4ee5\u4e0b\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
Mar 25, 2014 12:54:18 PM org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh\r\nINFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@4b9af9a9: startup date [Tue Mar 25 12:54:18 PDT 2014]; root of context hierarchy\r\nMar 25, 2014 12:54:18 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions\r\nINFO: Loading XML bean definitions from class path resource [spring.xml]\r\nMar 25, 2014 12:54:19 PM org.springframework.jdbc.datasource.DriverManagerDataSource setDriverClassName\r\nINFO: Loaded JDBC driver: com.mysql.jdbc.Driver\r\n\u5458\u5de5\u4fdd\u5b58\uff0cID=726\r\n\u627e\u5230\u5458\u5de5::{ID=726,Name=Pankaj,Role=Java Developer}\r\n\u68c0\u7d22\u5230\u7684\u5458\u5de5::{ID=726,Name=Pankaj,Role=Java Developer}\r\n\u5458\u5de5\u66f4\u65b0\uff0cID=726\r\n[{ID=726,Name=Pankaj,Role=CEO}]\r\n\u5458\u5de5\u5220\u9664\uff0cID=726\r\nMar 25, 2014 12:54:19 PM org.springframework.context.support.ClassPathXmlApplicationContext doClose\r\nINFO: Closing org.springframework.context.support.ClassPathXmlApplicationContext@4b9af9a9: startup date [Tue Mar 25 12:54:18 PDT 2014]; root of context hierarchy\r\n\u5b8c\u6210\r\n<\/code><\/pre>\n
Spring JdbcTemplate \u793a\u4f8b<\/h2>\n
\u5982\u679c\u4f60\u770bDAO\u5b9e\u73b0\u7c7b\uff0c\u6709\u5f88\u591a\u6a21\u677f\u4ee3\u7801\uff0c\u5728\u8fd9\u4e9b\u4ee3\u7801\u4e2d\u6211\u4eec\u6253\u5f00\u548c\u5173\u95edConnection\u3001PreparedStatements\u548cResultSet\u3002\u5982\u679c\u6709\u4eba\u5fd8\u8bb0\u6b63\u786e\u5173\u95ed\u8d44\u6e90\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u8d44\u6e90\u6cc4\u6f0f\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528org.springframework.jdbc.core.JdbcTemplate\u7c7b\u6765\u907f\u514d\u8fd9\u4e9b\u9519\u8bef\u3002Spring JdbcTemplate\u662fSpring JDBC\u6838\u5fc3\u5305\u4e2d\u7684\u4e2d\u5fc3\u7c7b\uff0c\u63d0\u4f9b\u4e86\u8bb8\u591a\u6267\u884c\u67e5\u8be2\u548c\u81ea\u52a8\u89e3\u6790ResultSet\u4ee5\u83b7\u53d6\u5bf9\u8c61\u6216\u5bf9\u8c61\u5217\u8868\u7684\u65b9\u6cd5\u3002\u6211\u4eec\u6240\u9700\u8981\u7684\u53ea\u662f\u63d0\u4f9b\u5bf9\u8c61\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u5b9e\u73b0\u56de\u8c03\u63a5\u53e3\uff0c\u5982PreparedStatementSetter\u548cRowMapper\uff0c\u7528\u4e8e\u6620\u5c04\u53c2\u6570\u6216\u5c06ResultSet\u6570\u636e\u8f6c\u6362\u4e3abean\u5bf9\u8c61\u3002\u8ba9\u6211\u4eec\u770b\u53e6\u4e00\u4e2aEmployeeDAO\u7684\u5b9e\u73b0\uff0c\u6211\u4eec\u5c06\u4f7f\u7528Spring JdbcTemplate\u7c7b\u6765\u6267\u884c\u4e0d\u540c\u7c7b\u578b\u7684\u67e5\u8be2\u3002<\/p>\n
\u8fd9\u662f\u6587\u7ae0\u300a\u6625\u5b63JDBC\u793a\u4f8b\u300b\u7684\u7b2c4\u90e8\u5206\uff08\u51714\u90e8\u5206\uff09\u3002<\/p>\n
package com.Olivia.spring.jdbc.dao;\r\n\r\nimport java.sql.ResultSet;\r\nimport java.sql.SQLException;\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\nimport java.util.Map;\r\n\r\nimport javax.sql.DataSource;\r\n\r\nimport org.springframework.jdbc.core.JdbcTemplate;\r\nimport org.springframework.jdbc.core.RowMapper;\r\n\r\nimport com.Olivia.spring.jdbc.model.Employee;\r\n\r\npublic class EmployeeDAOJDBCTemplateImpl implements EmployeeDAO {\r\n\r\n\tprivate DataSource dataSource;\r\n\r\n\tpublic void setDataSource(DataSource dataSource) {\r\n\t\tthis.dataSource = dataSource;\r\n\t}\r\n\t\r\n\t@Override\r\n\tpublic void save(Employee employee) {\r\n\t\tString query = \"insert into Employee (id, name, role) values (?,?,?)\";\r\n\t\t\r\n\t\tJdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);\r\n\t\t\r\n\t\tObject[] args = new Object[] {employee.getId(), employee.getName(), employee.getRole()};\r\n\t\t\r\n\t\tint out = jdbcTemplate.update(query, args);\r\n\t\t\r\n\t\tif(out !=0){\r\n\t\t\tSystem.out.println(\"Employee saved with id=\"+employee.getId());\r\n\t\t}else System.out.println(\"Employee save failed with id=\"+employee.getId());\r\n\t}\r\n\r\n\t@Override\r\n\tpublic Employee getById(int id) {\r\n\t\tString query = \"select id, name, role from Employee where id = ?\";\r\n\t\tJdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);\r\n\t\t\r\n\t\t\/\/using RowMapper anonymous class, we can create a separate RowMapper for reuse\r\n\t\tEmployee emp = jdbcTemplate.queryForObject(query, new Object[]{id}, new RowMapper<Employee>(){\r\n\r\n\t\t\t@Override\r\n\t\t\tpublic Employee mapRow(ResultSet rs, int rowNum)\r\n\t\t\t\t\tthrows SQLException {\r\n\t\t\t\tEmployee emp = new Employee();\r\n\t\t\t\temp.setId(rs.getInt(\"id\"));\r\n\t\t\t\temp.setName(rs.getString(\"name\"));\r\n\t\t\t\temp.setRole(rs.getString(\"role\"));\r\n\t\t\t\treturn emp;\r\n\t\t\t}});\r\n\t\t\r\n\t\treturn emp;\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void update(Employee employee) {\r\n\t\tString query = \"update Employee set name=?, role=? where id=?\";\r\n\t\tJdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);\r\n\t\tObject[] args = new Object[] {employee.getName(), employee.getRole(), employee.getId()};\r\n\t\t\r\n\t\tint out = jdbcTemplate.update(query, args);\r\n\t\tif(out !=0){\r\n\t\t\tSystem.out.println(\"Employee updated with id=\"+employee.getId());\r\n\t\t}else System.out.println(\"No Employee found with id=\"+employee.getId());\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void deleteById(int id) {\r\n\r\n\t\tString query = \"delete from Employee where id=?\";\r\n\t\tJdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);\r\n\t\t\r\n\t\tint out = jdbcTemplate.update(query, id);\r\n\t\tif(out !=0){\r\n\t\t\tSystem.out.println(\"Employee deleted with id=\"+id);\r\n\t\t}else System.out.println(\"No Employee found with id=\"+id);\r\n\t}\r\n\r\n\t@Override\r\n\tpublic List<Employee> getAll() {\r\n\t\tString query = \"select id, name, role from Employee\";\r\n\t\tJdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);\r\n\t\tList<Employee> empList = new ArrayList<Employee>();\r\n\r\n\t\tList<Map<String,Object>> empRows = jdbcTemplate.queryForList(query);\r\n\t\t\r\n\t\tfor(Map<String,Object> empRow : empRows){\r\n\t\t\tEmployee emp = new Employee();\r\n\t\t\temp.setId(Integer.parseInt(String.valueOf(empRow.get(\"id\"))));\r\n\t\t\temp.setName(String.valueOf(empRow.get(\"name\")));\r\n\t\t\temp.setRole(String.valueOf(empRow.get(\"role\")));\r\n\t\t\tempList.add(emp);\r\n\t\t}\r\n\t\treturn empList;\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
\u5bf9\u4e8eSpring JdbcTemplate\u7684\u4ee3\u7801\uff0c\u9700\u8981\u6ce8\u610f\u7684\u91cd\u70b9\u6709\uff1a<\/p>\n
    \n
  • \u4f7f\u7528\u5bf9\u8c61\u6570\u7ec4\u4f20\u9012PreparedStatement\u53c2\u6570\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528PreparedStatementSetter\u5b9e\u73b0\uff0c\u4f46\u4f20\u9012\u5bf9\u8c61\u6570\u7ec4\u4f3c\u4e4e\u66f4\u6613\u4e8e\u4f7f\u7528\u3002<\/li>\n
  • \u6ca1\u6709\u5173\u4e8e\u6253\u5f00\u548c\u5173\u95ed\u8fde\u63a5\u3001\u8bed\u53e5\u6216\u7ed3\u679c\u96c6\u7684\u4ee3\u7801\u3002\u6240\u6709\u8fd9\u4e9b\u90fd\u7531Spring JdbcTemplate\u7c7b\u5185\u90e8\u5904\u7406\u3002<\/li>\n
  • \u5728queryForObject()\u65b9\u6cd5\u4e2d\u4f7f\u7528RowMapper\u533f\u540d\u7c7b\u5b9e\u73b0\u5c06ResultSet\u6570\u636e\u6620\u5c04\u5230Employee bean\u5bf9\u8c61\u3002<\/li>\n
  • queryForList()\u65b9\u6cd5\u8fd4\u56deMap\u5217\u8868\uff0c\u5176\u4e2dMap\u5305\u542b\u4ee5\u5217\u540d\u4e3a\u952e\u3001\u4ee5\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u5e93\u884c\u503c\u4e3a\u503c\u7684\u884c\u6570\u636e\u6620\u5c04\u3002<\/li>\n<\/ul>\n
    \u8981\u4f7f\u7528Spring JdbcTemplate\u5b9e\u73b0\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5982\u4e0b\u6240\u793a\uff0c\u5728Spring Bean\u914d\u7f6e\u6587\u4ef6\u4e2d\u66f4\u6539employeeDAO\u7c7b\u3002<\/p>\n
    <bean id=\"employeeDAO\" class=\"com.Olivia.spring.jdbc.dao.EmployeeDAOJDBCTemplateImpl\">\r\n\t<property name=\"dataSource\" ref=\"dataSource\" \/>\r\n<\/bean>\r\n<\/code><\/pre>\n
    \u5f53\u60a8\u8fd0\u884c\u4e3b\u7c7b\u65f6\uff0cSpring JdbcTemplate \u5b9e\u73b0\u7684\u8f93\u51fa\u5c06\u4e0e\u4e0a\u9762\u770b\u5230\u7684\u666e\u901a JDBC \u5b9e\u73b0\u7c7b\u4f3c\u3002\u8fd9\u5c31\u662f\u5173\u4e8e Spring JDBC \u793a\u4f8b\u6559\u7a0b\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u4ece\u4e0b\u9762\u7684\u94fe\u63a5\u4e0b\u8f7d\u793a\u4f8b\u9879\u76ee\u5e76\u8fdb\u884c\u5c1d\u8bd5\uff0c\u4ee5\u4fbf\u5b66\u5230\u66f4\u591a\u77e5\u8bc6\u3002<\/p>\n
    \u4e0b\u8f7dSpring JDBC\u9879\u76ee<\/p>\n","protected":false},"excerpt":{"rendered":"
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