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  • Spring boot+JPA+Druid

    pom.xml
    1. <?xml version="1.0" encoding="UTF-8"?>
    2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    3. 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    4. 	<modelVersion>4.0.0</modelVersion>
    6. 	<groupId>com.yginsight</groupId>
    7. 	<artifactId>pm_admin</artifactId>
    8. 	<version>0.0.1-SNAPSHOT</version>
    9. 	<packaging>jar</packaging>
    11. 	<name>pm_admin</name>
    12. 	<description>Power Manager Admin</description>
    14. 	<parent>
    15. 		<groupId>org.springframework.boot</groupId>
    16. 		<artifactId>spring-boot-starter-parent</artifactId>
    17. 		<version>1.5.2.RELEASE</version>
    18. 		<relativePath/> <!-- lookup parent from repository -->
    19. 	</parent>
    21. 	<properties>
    22. 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    23. 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    24. 		<java.version>1.8</java.version>
    25. 	</properties>
    27. 	<dependencies>
    28. 		<dependency>
    29. 			<groupId>org.springframework.boot</groupId>
    30. 			<artifactId>spring-boot-starter-web</artifactId>
    31. 		</dependency>
    33. 		<dependency>
    34. 			<groupId>org.springframework.boot</groupId>
    35. 			<artifactId>spring-boot-starter-test</artifactId>
    36. 			<scope>test</scope>
    37. 		</dependency>
    38. 		<dependency>
    39. 			<groupId>com.alibaba</groupId>
    40. 			<artifactId>druid</artifactId>
    41. 			<version>1.0.26</version>
    42. 		</dependency>
    43. 		<dependency>
    44. 			<groupId>org.springframework.boot</groupId>
    45. 			<artifactId>spring-boot-configuration-processor</artifactId>
    46. 			<optional>true</optional>
    47. 		</dependency>
    48. 		<dependency>
    49. 			<groupId>org.springframework.boot</groupId>
    50. 			<artifactId>spring-boot-starter-data-jpa</artifactId>
    51. 		</dependency>
    52. 		<!-- postgresql连接 -->
    53. 		<dependency>
    54. 			<groupId>org.postgresql</groupId>
    55. 			<artifactId>postgresql</artifactId>
    56. 			<version>9.4-1201-jdbc41</version>
    57. 		</dependency>
    58. 		<!-- Springboot 热部署 -->
    59. 		<dependency>
    60. 			<groupId>org.springframework.boot</groupId>
    61. 			<artifactId>spring-boot-devtools</artifactId>
    62. 			<optional>true</optional>
    63. 		</dependency>
    65. 	</dependencies>
    67. 	<build>
    68. 		<plugins>
    69. 			<plugin>
    70. 				<groupId>org.springframework.boot</groupId>
    71. 				<artifactId>spring-boot-maven-plugin</artifactId>
    72. 			</plugin>
    73. 		</plugins>
    74. 	</build>
    77. </project>
    application.properties
    2. # 数据库访问配置
    3. # 主数据源，默认的
    4. #spring.datasource.druid.type=com.alibaba.druid.pool.DruidDataSource
    5. spring.datasource.druid.driver-class-name=org.postgresql.Driver
    6. spring.datasource.druid.url=jdbc:postgresql://127.0.0.1/powermanager
    7. spring.datasource.druid.username=postgres
    8. spring.datasource.druid.password=root
    11. # 下面为连接池的补充设置，应用到上面所有数据源中
    12. # 初始化大小，最小，最大
    13. spring.datasource.druid.initial-size=5
    14. spring.datasource.druid.minIdle=5
    15. spring.datasource.druid.maxActive=20
    16. # 配置获取连接等待超时的时间
    17. spring.datasource.druid.maxWait=60000
    18. # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
    19. spring.datasource.druid.timeBetweenEvictionRunsMillis=60000
    20. # 配置一个连接在池中最小生存的时间，单位是毫秒
    21. spring.datasource.druid.minEvictableIdleTimeMillis=300000
    22. spring.datasource.druid.validationQuery=SELECT 1 FROM DUAL
    23. spring.datasource.druid.testWhileIdle=true
    24. spring.datasource.druid.testOnBorrow=false
    25. spring.datasource.druid.testOnReturn=false
    26. # 打开PSCache，并且指定每个连接上PSCache的大小
    27. spring.datasource.druid.poolPreparedStatements=true
    28. spring.datasource.druid.maxPoolPreparedStatementPerConnectionSize=20
    29. # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
    30. spring.datasource.druid.filters=stat,wall,log4j
    31. # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
    32. spring.datasource.druid.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
    33. # 合并多个DruidDataSource的监控数据
    34. #spring.datasource.druid.useGlobalDataSourceStat=true

    由于上述配置文件中，Spring.datasource.druid无法被识别，需要自行增加配置项
    增加两个配置相关类
    1. package com.yginsight.druid;
    3. import com.alibaba.druid.pool.DruidDataSource;
    4. import com.alibaba.druid.support.http.StatViewServlet;
    5. import com.alibaba.druid.support.http.WebStatFilter;
    6. import org.springframework.beans.factory.annotation.Autowired;
    7. import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
    8. import org.springframework.boot.context.properties.EnableConfigurationProperties;
    9. import org.springframework.boot.web.servlet.FilterRegistrationBean;
    10. import org.springframework.boot.web.servlet.ServletRegistrationBean;
    11. import org.springframework.context.annotation.Bean;
    12. import org.springframework.context.annotation.Configuration;
    14. import javax.sql.DataSource;
    15. import java.sql.SQLException;
    17. /**
    18.  * Created by dingshuo on 2017/4/13.
    19.  */
    20. @Configuration
    21. @EnableConfigurationProperties({DruidDataSourceProperties.class})
    22. public class DruidConfiguration {
    23.     @Autowired
    24.     private DruidDataSourceProperties properties;
    26.     @Bean
    27.     @ConditionalOnMissingBean
    28.     public DataSource druidDataSource() {
    29.         DruidDataSource druidDataSource = new DruidDataSource();
    30.         druidDataSource.setDriverClassName(properties.getDriverClassName());
    31.         druidDataSource.setUrl(properties.getUrl());
    32.         druidDataSource.setUsername(properties.getUsername());
    33.         druidDataSource.setPassword(properties.getPassword());
    34.         druidDataSource.setInitialSize(properties.getInitialSize());
    35.         druidDataSource.setMinIdle(properties.getMinIdle());
    36.         druidDataSource.setMaxActive(properties.getMaxActive());
    37.         druidDataSource.setMaxWait(properties.getMaxWait());
    38.         druidDataSource.setTimeBetweenEvictionRunsMillis(properties.getTimeBetweenEvictionRunsMillis());
    39.         druidDataSource.setMinEvictableIdleTimeMillis(properties.getMinEvictableIdleTimeMillis());
    40.         druidDataSource.setValidationQuery(properties.getValidationQuery());
    41.         druidDataSource.setTestWhileIdle(properties.isTestWhileIdle());
    42.         druidDataSource.setTestOnBorrow(properties.isTestOnBorrow());
    43.         druidDataSource.setTestOnReturn(properties.isTestOnReturn());
    44.         druidDataSource.setPoolPreparedStatements(properties.isPoolPreparedStatements());
    45.         druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(properties.getMaxPoolPreparedStatementPerConnectionSize());
    46.         druidDataSource.setConnectionProperties(properties.getConnectionProperties());
    47.         try {
    48.             druidDataSource.setFilters(properties.getFilters());
    49.             druidDataSource.init();
    50.         } catch (SQLException e) {
    51.             e.printStackTrace();
    52.         }
    54.         return druidDataSource;
    55.     }
    57.     @Bean
    58.     @ConditionalOnMissingBean
    59.     public ServletRegistrationBean druidServlet() {
    61.         ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
    63.         //添加初始化参数：initParams
    65.         //白名单：
    66.         //servletRegistrationBean.addInitParameter("allow","127.0.0.1");
    67.         //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.
    68.         //servletRegistrationBean.addInitParameter("deny","192.168.1.73");
    69.         //登录查看信息的账号密码.
    70.         servletRegistrationBean.addInitParameter("loginUsername", "admin");
    71.         servletRegistrationBean.addInitParameter("loginPassword", "admin");
    72.         //是否能够重置数据.
    73.         servletRegistrationBean.addInitParameter("resetEnable", "true");
    74.         return servletRegistrationBean;
    76.     }
    78.     @Bean
    79.     @ConditionalOnMissingBean
    80.     public FilterRegistrationBean filterRegistrationBean() {
    81.         FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
    82.         filterRegistrationBean.setFilter(new WebStatFilter());
    83.         filterRegistrationBean.addUrlPatterns("/*");
    84.         filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
    85.         return filterRegistrationBean;
    86.     }
    87. }
    1. package com.yginsight.druid;
    2. import org.springframework.boot.context.properties.ConfigurationProperties;
    3. /**
    4.  * Created by dingshuo on 2017/4/13.
    5.  */
    6. @ConfigurationProperties(prefix = "spring.datasource.druid")
    7. public class DruidDataSourceProperties {
    8.     private String driverClassName;
    9.     private String url;
    10.     private String username;
    11.     private String password;
    13.     private int initialSize;
    14.     private int minIdle;
    15.     private int maxActive;
    16.     private long maxWait;
    17.     private long timeBetweenEvictionRunsMillis;
    18.     private long minEvictableIdleTimeMillis;
    19.     private String validationQuery;
    20.     private boolean testWhileIdle;
    21.     private boolean testOnBorrow;
    22.     private boolean testOnReturn;
    23.     private boolean poolPreparedStatements;
    24.     private int maxPoolPreparedStatementPerConnectionSize;
    25.     private String filters;
    26.     private String connectionProperties;
    28.     public int getInitialSize() {
    29.         return initialSize;
    30.     }
    32.     public void setInitialSize(int initialSize) {
    33.         this.initialSize = initialSize;
    34.     }
    36.     public int getMinIdle() {
    37.         return minIdle;
    38.     }
    40.     public void setMinIdle(int minIdle) {
    41.         this.minIdle = minIdle;
    42.     }
    44.     public int getMaxActive() {
    45.         return maxActive;
    46.     }
    48.     public void setMaxActive(int maxActive) {
    49.         this.maxActive = maxActive;
    50.     }
    52.     public long getMaxWait() {
    53.         return maxWait;
    54.     }
    56.     public void setMaxWait(long maxWait) {
    57.         this.maxWait = maxWait;
    58.     }
    60.     public long getTimeBetweenEvictionRunsMillis() {
    61.         return timeBetweenEvictionRunsMillis;
    62.     }
    64.     public void setTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis) {
    65.         this.timeBetweenEvictionRunsMillis = timeBetweenEvictionRunsMillis;
    66.     }
    68.     public long getMinEvictableIdleTimeMillis() {
    69.         return minEvictableIdleTimeMillis;
    70.     }
    72.     public void setMinEvictableIdleTimeMillis(long minEvictableIdleTimeMillis) {
    73.         this.minEvictableIdleTimeMillis = minEvictableIdleTimeMillis;
    74.     }
    76.     public String getValidationQuery() {
    77.         return validationQuery;
    78.     }
    80.     public void setValidationQuery(String validationQuery) {
    81.         this.validationQuery = validationQuery;
    82.     }
    84.     public boolean isTestWhileIdle() {
    85.         return testWhileIdle;
    86.     }
    88.     public void setTestWhileIdle(boolean testWhileIdle) {
    89.         this.testWhileIdle = testWhileIdle;
    90.     }
    92.     public boolean isTestOnBorrow() {
    93.         return testOnBorrow;
    94.     }
    96.     public void setTestOnBorrow(boolean testOnBorrow) {
    97.         this.testOnBorrow = testOnBorrow;
    98.     }
    100.     public boolean isTestOnReturn() {
    101.         return testOnReturn;
    102.     }
    104.     public void setTestOnReturn(boolean testOnReturn) {
    105.         this.testOnReturn = testOnReturn;
    106.     }
    108.     public boolean isPoolPreparedStatements() {
    109.         return poolPreparedStatements;
    110.     }
    112.     public void setPoolPreparedStatements(boolean poolPreparedStatements) {
    113.         this.poolPreparedStatements = poolPreparedStatements;
    114.     }
    116.     public int getMaxPoolPreparedStatementPerConnectionSize() {
    117.         return maxPoolPreparedStatementPerConnectionSize;
    118.     }
    120.     public void setMaxPoolPreparedStatementPerConnectionSize(int maxPoolPreparedStatementPerConnectionSize) {
    121.         this.maxPoolPreparedStatementPerConnectionSize = maxPoolPreparedStatementPerConnectionSize;
    122.     }
    124.     public String getFilters() {
    125.         return filters;
    126.     }
    128.     public void setFilters(String filters) {
    129.         this.filters = filters;
    130.     }
    132.     public String getConnectionProperties() {
    133.         return connectionProperties;
    134.     }
    136.     public void setConnectionProperties(String connectionProperties) {
    137.         this.connectionProperties = connectionProperties;
    138.     }
    140.     public String getDriverClassName() {
    141.         return driverClassName;
    142.     }
    144.     public void setDriverClassName(String driverClassName) {
    145.         this.driverClassName = driverClassName;
    146.     }
    148.     public String getUrl() {
    149.         return url;
    150.     }
    152.     public void setUrl(String url) {
    153.         this.url = url;
    154.     }
    156.     public String getUsername() {
    157.         return username;
    158.     }
    160.     public void setUsername(String username) {
    161.         this.username = username;
    162.     }
    164.     public String getPassword() {
    165.         return password;
    166.     }
    168.     public void setPassword(String password) {
    169.         this.password = password;
    170.     }
    171. }
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  • 原文地址：https://www.cnblogs.com/tilv37/p/6703122.html
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