在Druid的配置中增加@@ConfigurationProperties這段配置,就可以檢視sql監控了

package com.cn;

import java.sql.SQLException;
import javax.sql.DataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;


@Configuration
public class DruidConfiguration {
private static final String DB_PREFIX = "spring.datasource";

@Bean
public ServletRegistrationBean startViewServlet() {
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");


// servletRegistrationBean.addInitParameter("allow", "127.0.0.1");
servletRegistrationBean.addInitParameter("loginUsername", "test");
servletRegistrationBean.addInitParameter("loginPassword", "test");
servletRegistrationBean.addInitParameter("resetEnable", "false");


return servletRegistrationBean;
}


@Bean
public FilterRegistrationBean statFilter() {
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
// 設定過濾器過濾路徑
filterRegistrationBean.addUrlPatterns("/*");
// 忽略過濾的形式
filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");


return filterRegistrationBean;
}

//解決 spring.datasource.filters=stat,wall,log4j 無法正常註冊進去
    @ConfigurationProperties(prefix = DB_PREFIX)
    class IDataSourceProperties {
        private String url;
        private String username;
        private String password;
        private String driverClassName;
        private int initialSize;
        private int minIdle;
        private int maxActive;
        private int maxWait;
        private int timeBetweenEvictionRunsMillis;
        private int minEvictableIdleTimeMillis;
        private String validationQuery;
        private boolean testWhileIdle;
        private boolean testOnBorrow;
        private boolean testOnReturn;
        private boolean poolPreparedStatements;
        private int maxPoolPreparedStatementPerConnectionSize;
        private String filters;
        private String connectionProperties;


        @Bean     //宣告其為Bean例項
        @Primary  //在同樣的DataSource中，首先使用被標註的DataSource
        public DataSource dataSource() {
            DruidDataSource datasource = new DruidDataSource();
            datasource.setUrl(url);
            datasource.setUsername(username);
            datasource.setPassword(password);
            datasource.setDriverClassName(driverClassName);


            //configuration
            datasource.setInitialSize(initialSize);
            datasource.setMinIdle(minIdle);
            datasource.setMaxActive(maxActive);
            datasource.setMaxWait(maxWait);
            datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
            datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
            datasource.setValidationQuery(validationQuery);
            datasource.setTestWhileIdle(testWhileIdle);
            datasource.setTestOnBorrow(testOnBorrow);
            datasource.setTestOnReturn(testOnReturn);
            datasource.setPoolPreparedStatements(poolPreparedStatements);
            datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
            try {
                datasource.setFilters(filters);
            } catch (SQLException e) {
                System.err.println("druid configuration initialization filter: " + e);
            }
            datasource.setConnectionProperties(connectionProperties);
            return datasource;
        }


        public String getUrl() {
            return url;
        }


        public void setUrl(String url) {
            this.url = url;
        }


        public String getUsername() {
            return username;
        }


        public void setUsername(String username) {
            this.username = username;
        }


        public String getPassword() {
            return password;
        }


        public void setPassword(String password) {
            this.password = password;
        }


        public String getDriverClassName() {
            return driverClassName;
        }


        public void setDriverClassName(String driverClassName) {
            this.driverClassName = driverClassName;
        }


        public int getInitialSize() {
            return initialSize;
        }


        public void setInitialSize(int initialSize) {
            this.initialSize = initialSize;
        }


        public int getMinIdle() {
            return minIdle;
        }


        public void setMinIdle(int minIdle) {
            this.minIdle = minIdle;
        }


        public int getMaxActive() {
            return maxActive;
        }


        public void setMaxActive(int maxActive) {
            this.maxActive = maxActive;
        }


        public int getMaxWait() {
            return maxWait;
        }


        public void setMaxWait(int maxWait) {
            this.maxWait = maxWait;
        }


        public int getTimeBetweenEvictionRunsMillis() {
            return timeBetweenEvictionRunsMillis;
        }


        public void setTimeBetweenEvictionRunsMillis(int timeBetweenEvictionRunsMillis) {
            this.timeBetweenEvictionRunsMillis = timeBetweenEvictionRunsMillis;
        }


        public int getMinEvictableIdleTimeMillis() {
            return minEvictableIdleTimeMillis;
        }


        public void setMinEvictableIdleTimeMillis(int minEvictableIdleTimeMillis) {
            this.minEvictableIdleTimeMillis = minEvictableIdleTimeMillis;
        }


        public String getValidationQuery() {
            return validationQuery;
        }


        public void setValidationQuery(String validationQuery) {
            this.validationQuery = validationQuery;
        }


        public boolean isTestWhileIdle() {
            return testWhileIdle;
        }


        public void setTestWhileIdle(boolean testWhileIdle) {
            this.testWhileIdle = testWhileIdle;
        }


        public boolean isTestOnBorrow() {
            return testOnBorrow;
        }


        public void setTestOnBorrow(boolean testOnBorrow) {
            this.testOnBorrow = testOnBorrow;
        }


        public boolean isTestOnReturn() {
            return testOnReturn;
        }


        public void setTestOnReturn(boolean testOnReturn) {
            this.testOnReturn = testOnReturn;
        }


        public boolean isPoolPreparedStatements() {
            return poolPreparedStatements;
        }


        public void setPoolPreparedStatements(boolean poolPreparedStatements) {
            this.poolPreparedStatements = poolPreparedStatements;
        }


        public int getMaxPoolPreparedStatementPerConnectionSize() {
            return maxPoolPreparedStatementPerConnectionSize;
        }


        public void setMaxPoolPreparedStatementPerConnectionSize(int maxPoolPreparedStatementPerConnectionSize) {
            this.maxPoolPreparedStatementPerConnectionSize = maxPoolPreparedStatementPerConnectionSize;
        }


        public String getFilters() {
            return filters;
        }


        public void setFilters(String filters) {
            this.filters = filters;
        }


        public String getConnectionProperties() {
            return connectionProperties;
        }


        public void setConnectionProperties(String connectionProperties) {
            this.connectionProperties = connectionProperties;
        }
    }
}