Struts2异常处理

Struts2异常处理

Struts2提供了强大的异常处理机制,只需要在struts.xml文件中配置异常处理即可,而不需要在Action中捕获异常。

自定义异常类(继承了Exception)

示例如下:

publicclass SecurityException extends Exception {

    private String errorMessage;

    public SecurityException() {

        super();

    }

    public SecurityException(String message) {

        this .errorMessage=message;

    }

    public String getErrorMessage() {

        returnerrorMessage;

    }

}

全局异常

<global-exception-mappings>

        <exception-mapping result="SQLException" exception="java.sql.SQLException" />

        <exception-mapping result="Exception" exception="java.lang.Exception" />

    global-exception-mappings>

        <global-results>

            <result name="SQLException">/error/SQLException.jspresult>

            <result name="Exception">/error/Exception.jspresult>

global-results>

局部异常

<action name="hello"class="com.chen.action.Hello">

            <exception-mapping result="SecurityException" exception="com.chen.exception.SecurityException"/>

            <result name="success">/sayHao.jspresult>

            <result name="SecurityException">/error/SecurityException.jspresult>

action>

你可能感兴趣的:(Struts,2)