JSP JSTL s c out tag

Question

Writing a JSP page  what exactly does the  lt c out gt  do  I ve noticed that the following both has the same result    lt p gt The person s name is  lt c out value    person name     gt  lt  p gt   lt p gt The person s name is   person name  lt  p gt

User · Answer

Older versions of JSP did not support the second syntax

User · Answer

As said Will Wagner  in old version of jsp you should always use c out to output dynamic text   Moreover  using this syntax    lt c out value    person name   gt No name lt  c out gt    you can display the text  No name  when name is null

User · Answer

c out also has an attribute for assigning a default value if the value of person name happens to be null   Source  out  TLDDoc Generated Documentation

User · Answer

c out escapes HTML characters so that you can avoid cross-site scripting   if person name    lt script gt alert  Yo   lt  script gt   the script will be executed in the second case  but not when using c out

User · Answer

As said Will Wagner  in old version of jsp you should always use c out to output dynamic text   Moreover  using this syntax    lt c out value    person name   gt No name lt  c out gt    you can display the text  No name  when name is null

User · Answer

c out escapes HTML characters so that you can avoid cross-site scripting   if person name    lt script gt alert  Yo   lt  script gt   the script will be executed in the second case  but not when using c out

User · Answer

c out also has an attribute for assigning a default value if the value of person name happens to be null   Source  out  TLDDoc Generated Documentation

User · Answer

You can  explicitly enable escaping of Xml entities by using an attribute escapeXml value equals to true  FYI  it s by default  true

User · Answer

c out escapes HTML characters so that you can avoid cross-site scripting   if person name    lt script gt alert  Yo   lt  script gt   the script will be executed in the second case  but not when using c out

User · Answer

Older versions of JSP did not support the second syntax

User · Answer

c out also has an attribute for assigning a default value if the value of person name happens to be null   Source  out  TLDDoc Generated Documentation

User · Answer

As said Will Wagner  in old version of jsp you should always use c out to output dynamic text   Moreover  using this syntax    lt c out value    person name   gt No name lt  c out gt    you can display the text  No name  when name is null

User · Answer

c out escapes HTML characters so that you can avoid cross-site scripting   if person name    lt script gt alert  Yo   lt  script gt   the script will be executed in the second case  but not when using c out

User · Answer

You can  explicitly enable escaping of Xml entities by using an attribute escapeXml value equals to true  FYI  it s by default  true

User · Answer

Older versions of JSP did not support the second syntax

User · Answer

Older versions of JSP did not support the second syntax

User · Answer

As said Will Wagner  in old version of jsp you should always use c out to output dynamic text   Moreover  using this syntax    lt c out value    person name   gt No name lt  c out gt    you can display the text  No name  when name is null

User · Answer

c out also has an attribute for assigning a default value if the value of person name happens to be null   Source  out  TLDDoc Generated Documentation

[java] JSP : JSTL's <c:out> tag

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