Java-Note-通过相对位置读取文件

  • 项目代码中:
    • 想要读取项目下的文件, 又不希望写死路径, 可以把路径写为: “src/…”
  • 浏览器中: 浏览器中读取服务器的文件
    • 在tomcat的service.xml进行一下修改(Context标签):
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      <Host name="localhost"  appBase="webapps"
      unpackWARs="true" autoDeploy="true">
      <Context path="/custom_api/static" docBase="\custom_api\WEB-INF\static"
      reloadable="true" debug="0"/>
      <Context path="/custom_api" docBase="D:\runtime\jnScience"
      reloadable="true" debug="0"/>
      <!-- SingleSignOn valve, share authentication between web applications
      Documentation at: /docs/config/valve.html -->
      <!--
      <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
      -->

      <!-- Access log processes all example.
      Documentation at: /docs/config/valve.html
      Note: The pattern used is equivalent to using pattern="common" -->
      <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
      prefix="localhost_access_log" suffix=".txt"
      pattern="%h %l %u %t &quot;%r&quot; %s %b" />
      </Host>