springboot集成点评cat监控

1. 引包

<!--        点评cat-->
<dependency>
    <groupId>com.dianping.cat</groupId>
    <artifactId>cat-client</artifactId>
    <version>3.0.0</version>
</dependency>

2. 引入cat的核心过滤器

import com.dianping.cat.servlet.CatFilter;
/**
 * 引入这个以后cat项目就能监控到你访问的url
 * @author :yepk
 * @version :1.0
 * @apiNote :cat核心过滤器
 * @date :2020-06-18-9:04
 */
@Component
public class CatFilterConfigure {
    @Bean
    public FilterRegistrationBean catFilter() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        CatFilter filter = new CatFilter();
        registration.setFilter(filter);
        registration.addUrlPatterns("/*");
        registration.setName("cat-filter");
        registration.setOrder(1);
        return registration;
    }
}

3. 建立项目名称配置文件

4. 建立配置文件位置

从项目位置的根目录创建

1. client.xml内容如下：

<?xml version="1.0" encoding="utf-8"?>
<config mode="client">
    <servers>
        <!-- ip：部署CAT应用的服务器IP
             port：CAT服务端接收客户端数据的端口（不允许更改）
             http-port：CAT应用部署到的容器的端口（tomcat的端口）
        -->
        <server ip="xx.xx.xx.xx" port="2280" http-port="8089" />
    </servers>
</config>

2. cat项目的日志目录
   

5. 集成mybatis拦截器

目前只能拦截到增删改

import com.dianping.cat.Cat;
import com.dianping.cat.message.Message;
import com.dianping.cat.message.Transaction;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.cache.CacheKey;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.plugin.*;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.type.TypeHandlerRegistry;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.text.DateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Properties;

/***
 * @apiNote 点评cat mybatis拦截器
 * @author yepk
 * @date 2020/6/18 16:29
 */
@Slf4j
@Intercepts({@Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class, CacheKey.class, BoundSql.class}),
        @Signature(type = Executor.class, method = "update", args = {MappedStatement.class, Object.class})})
@Component
public class CatMybatisInterceptor implements Interceptor {

    private Properties properties;

    @Value("${spring.datasource.url}")
    private String datasourceUrl;

    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0];
        String methodName = this.getMethodName(mappedStatement);
        Transaction t = Cat.newTransaction("SQL", methodName);

        Cat.logEvent("SQL.Database", datasourceUrl);
        Cat.logEvent("SQL.Method", mappedStatement.getSqlCommandType().name().toLowerCase(), Message.SUCCESS, getSql(invocation, mappedStatement));
        try {
            Object returnValue = invocation.proceed();
            t.setStatus(Transaction.SUCCESS);
            return returnValue;
        } catch (Throwable e) {
            Cat.logError(e);
            t.setStatus(e);
            throw e;
        } finally {
            t.complete();
        }

    }

    private String getMethodName(MappedStatement mappedStatement) {
        String[] strArr = mappedStatement.getId().split("\\.");
        return strArr[strArr.length - 2] + "." + strArr[strArr.length - 1];
    }

    private String getSql(Invocation invocation, MappedStatement mappedStatement) {
        Object parameter = null;
        if (invocation.getArgs().length > 1) {
            parameter = invocation.getArgs()[1];
        }
        BoundSql boundSql = mappedStatement.getBoundSql(parameter);
        Configuration configuration = mappedStatement.getConfiguration();
        return showSql(configuration, boundSql);
    }

    private static String getParameterValue(Object obj) {
        StringBuilder retStringBuilder = new StringBuilder();
        if (obj instanceof String) {
            retStringBuilder.append("'").append(obj).append("'");
        } else if (obj instanceof Date) {
            DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.CHINA);
            retStringBuilder.append("'").append(formatter.format(new Date())).append("'");
        } else {
            retStringBuilder.append("'").append(obj == null ? "" : obj).append("'");
        }
        return retStringBuilder.toString();
    }

    public static String showSql(Configuration configuration, BoundSql boundSql) {
        Object parameterObject = boundSql.getParameterObject();
        List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
        String sql = boundSql.getSql().replaceAll("[\\s]+", " ");
        StringBuilder sqlBuilder = new StringBuilder(sql);
        if (parameterMappings.size() > 0 && parameterObject != null) {
            int start = sqlBuilder.indexOf("?");
            int end = start + 1;

            TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
            if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
                sqlBuilder.replace(start, end, getParameterValue(parameterObject));
            } else {
                MetaObject metaObject = configuration.newMetaObject(parameterObject);
                for (ParameterMapping parameterMapping : parameterMappings) {
                    String propertyName = parameterMapping.getProperty();
                    if (metaObject.hasGetter(propertyName)) {
                        Object obj = metaObject.getValue(propertyName);
                        sqlBuilder.replace(start, end, getParameterValue(obj));
                    } else if (boundSql.hasAdditionalParameter(propertyName)) {
                        Object obj = boundSql.getAdditionalParameter(propertyName);
                        sqlBuilder.replace(start, end, getParameterValue(obj));
                    }

                    start = sqlBuilder.indexOf("?");
                    end = start + 1;
                }
            }
        }
        return sqlBuilder.toString();
    }

    @Override
    public Object plugin(Object target) {
        return Plugin.wrap(target, this);
    }

    @Override
    public void setProperties(Properties properties) {
        this.properties = properties;
    }

}

6.将mybatis拦截器注入到sqlSessionFactory

import org.apache.ibatis.plugin.Interceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;

/**
 * @author :yepk
 * @version :1.0
 * @apiNote :cat配置
 * @date :2020-06-18-8:56
 */
@Component
public class CatMyBatisPlusConfiguration {

    @Resource
    private CatMybatisInterceptor catMybatisInterceptor;

    @Bean
    public Interceptor[] plugins() {
        return new Interceptor[]{catMybatisInterceptor};
    }
}

7. 最重要一点

点评cat jar包来自点评的私服，所以要加私服地址，不然jar包下载不下来的。

<repositories>
    <!-- CAT client 仓库 -->
    <repository>
        <id>unidal-nexus-repo</id>
        <url>http://unidal.org/nexus/content/repositories/releases</url>
    </repository>
</repositories>

8. 服务端搭建

https://www.yepk.cn/archives/cat-server-install.html