JavaMelody初使用

第一步pom檔案

<!-- javamelody-core -->
<dependency>
    <groupId>net.bull.javamelody</groupId>
    <artifactId>javamelody-core</artifactId>
    <version>1.58.0</version>
</dependency>
<!-- itext, option to add PDF export -->
<dependency>
    <groupId>com.lowagie</groupId>
    <artifactId>itext</artifactId>
    <version>2.1.7</version>
    <exclusions>
        <exclusion>
            <artifactId>bcmail-jdk14</artifactId>
            <groupId>bouncycastle</groupId>
        </exclusion>
        <exclusion>
            <artifactId>bcprov-jdk14</artifactId>
            <groupId>bouncycastle</groupId>
        </exclusion>
        <exclusion>
            <artifactId>bctsp-jdk14</artifactId>
            <groupId>bouncycastle</groupId>
        </exclusion>
    </exclusions>
</dependency>
           

第二歩web.xml

<context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:net/bull/javamelody/monitoring-spring-datasource.xml
            classpath*:/applicationContext.xml
        </param-value>
    </context-param>
           

<filter>
    <filter-name>javamelody</filter-name>
    <filter-class>net.bull.javamelody.MonitoringFilter</filter-class>
    <async-supported>true</async-supported>
</filter>
<filter-mapping>
    <filter-name>javamelody</filter-name>
    <url-pattern>/*</url-pattern>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>ASYNC</dispatcher>
</filter-mapping>
<listener>
    <listener-class>net.bull.javamelody.SessionListener</listener-class>
</listener>
           

classpath:net/bull/javamelody/monitoring-spring-datasource.xml 這句一定要寫在上面

第三歩：監控資料源

<bean id="mainDataSource" class="net.bull.javamelody.SpringDataSourceFactoryBean">
        <property name="targetName" value="dataSource" />
    </bean>
           

這裡的資料源dataSource 是項目中資料源bean的id

完成以上步驟，通路

http://<host>:<port>/projectName/monitoring

就可以看到監控的頁面了

這個連結預設是所有人都通路的，我們可以加一個filter 來過濾/monitoring的請求

public class JavaMelodyFilter extends net.bull.javamelody.MonitoringFilter{

    @Override
    public void doFilter(ServletRequest srequest, ServletResponse sresponse, FilterChain chain)
            throws IOException, ServletException {
         HttpServletRequest request = (HttpServletRequest) srequest;
         String uri = request.getRequestURI();
         if (uri.indexOf("/monitoring") != -) {
             User user = (User)SecurityUtils.getSubject().getSession().getAttribute("user");
             if(user == null || user.getIdentity()!=UserType.SYS){  
                return; 
             }
        }
        super.doFilter(srequest, sresponse, chain);
    }

}
           

注意filter要繼承net.bull.javamelody.MonitoringFilter