Java Learning Notes (2)--struts2 type conversion, data validation important points of knowledge

1, *action.conversion-properties

such as (Point=com.test.converter.pointlistconverter)

Configuration file for the specific action class

2, *action.properties

such as (INVALID.FIELDVALUE.GRADUATION=\U6BD5\U4E1A\U65E5\U671F\U8F93\U5165\U9519\U8BEF)

Configuration file for specific field error message

2, in Struts.xml

            <Actionname= "Register"class= "Com.test.action.RegisterAction">                <resultname= "Success">/registersuccess.jsp</result>
When an error message occurs, Struts automatically finds the input tag of the current action and performs a jump
 　　　　　　　　　  <result name= "Input">/register.jsp</result>               </Action>

3, struts.xml label description

The description of which constants need to be used in the constant--struts framework, which can be used as the basis for configuring global type conversions in the Type conversion section

Other configuration files included with include--

4. Struts local type Conversion error configuration method

A) Create the *.properties file in the same sibling directory as the corresponding *action

b) Fill in the Invalid.fieldvalue.fieldname= error message

5. Struts Global type Conversion error configuration method

A) Add constant tags to struts.xml

<name= "Struts.custom.i18n.resources"  value= "message"  ></constant>

b) Create the message.properties file in the SRC directory

c) fill in xwork.default.invalid.fieldvalue=[0] Error

6, Native2ascii Javac character conversion to ASCII code method

A) cmd--nativce2ascii source file. txt converted file. properties

7, type conversion is not successful int value will be given 0

8. When a type conversion is not possible, the STRUTS2 framework automatically adds the error through Addfielderror ()

Java Learning Notes (2)--struts2 type conversion, data validation important points of knowledge