先贴代码package service;
import java.io.File;
import java.sql.*;
import org.apache.struts2.ServletActionContext;
public class Delet {
public String fileNamed;
public String getFilename(){
return fileNamed;
}
public void setFilename(String fileNamed){
this.fileNamed=fileNamed;
}
public String getDFilename(){
String fileNamed=ServletActionContext.getRequest().
getParameter("fileNamed");
String deletname=fileNamed;
try{
deletname=new String(deletname.getBytes(),"UTF-8");
}catch(Exception e){
e.printStackTrace();
}
return deletname;
}
public String excute() throws Exception{
String name=getDFilename();
String realPath= "/upload"+"\\"+name;
File fileName=new File(realPath+name);
Connection conn=Jdbc.getConnection();
Statement stam=conn.createStatement();
String sql="delet from file where filename=?";
System.out.println(realPath);
try{
fileName.delete();
stam.executeUpdate(sql);
}catch(SQLException e){
e.printStackTrace();
conn.rollback();
}finally{
conn.close();
stam.close();
}
return "success";
}
}
struts.xml
<action name="Delet" class="service.Delet">
<result name="success">/user/modifyfile.jsp</result>
</action>
问题:
java.lang.NoSuchMethodException: service.Delet.execute()
java.lang.Class.getMethod(Class.java:1605)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.getActionMethod(AnnotationValidationInterceptor.java:75)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:47)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(······省略
删除文件的资料网上找到的不是很多
不知道怎么操作
import java.io.File;
import java.sql.*;
import org.apache.struts2.ServletActionContext;
public class Delet {
public String fileNamed;
public String getFilename(){
return fileNamed;
}
public void setFilename(String fileNamed){
this.fileNamed=fileNamed;
}
public String getDFilename(){
String fileNamed=ServletActionContext.getRequest().
getParameter("fileNamed");
String deletname=fileNamed;
try{
deletname=new String(deletname.getBytes(),"UTF-8");
}catch(Exception e){
e.printStackTrace();
}
return deletname;
}
public String excute() throws Exception{
String name=getDFilename();
String realPath= "/upload"+"\\"+name;
File fileName=new File(realPath+name);
Connection conn=Jdbc.getConnection();
Statement stam=conn.createStatement();
String sql="delet from file where filename=?";
System.out.println(realPath);
try{
fileName.delete();
stam.executeUpdate(sql);
}catch(SQLException e){
e.printStackTrace();
conn.rollback();
}finally{
conn.close();
stam.close();
}
return "success";
}
}
struts.xml
<action name="Delet" class="service.Delet">
<result name="success">/user/modifyfile.jsp</result>
</action>
问题:
java.lang.NoSuchMethodException: service.Delet.execute()
java.lang.Class.getMethod(Class.java:1605)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.getActionMethod(AnnotationValidationInterceptor.java:75)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:47)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(······省略
删除文件的资料网上找到的不是很多
不知道怎么操作
就不会报java.lang.NoSuchMethodException: service.Delet.execute()错误了
这个方法写错了。
public String execute() throws Exception{
少写了一个e