1.Window->Preferences //Java 格式化 2.Java->Code Style->Formatter->New->Edit->Line Wrapping 3.Maximum Line width = 180 4.Set line width for preview window = 180 //JavaScript 格式化 5.JavaScript->Code Style->Formatter->New->Edit->Line Wrapping 6.Maximum Line width = 180 7.Set line width for preview window = 180 8.Tab标签页->Comments 9.Maximum line width for comments = 180 //JSP|HTML页面 格式化 10.Web->HTML Files->Editor Line width = 180 Inline Elements 选中所有-> Remove