在Java字符串中获取Textarea换行符

我有以下表格:

<form method="post" action="./Contact">

<input type="text" name="Problem"><br>

<textarea name="message"></textarea>

<input type="submit" value="Send Problem">

</form>

进入联系Servlet代码:

protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

request.setCharacterEncoding("UTF-8");

String b = request.getParameter("Problem");

String a = request.getParameter("message");

request.setAttribute("message", a);

request.setAttribute("problem", b);

request.getRequestDispatcher("./index.jsp").forward(request, response);

}

只是测试消息,将其转换为index.jsp代码:

<p> Problem: ${problem}</p>

<p> Message: ${message}</p>

它正在运行,但是如果书面消息为:“这是一条消息;

这是一条新的讯息。

我在打破界限。”

打印的消息将是:“这是一条消息;这是一条新的消息行,我正在换行。”

如何使用字符串从textarea消息中获得书面的换行符?

回答:

使用StringBuffer这样的,

 protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

request.setCharacterEncoding("UTF-8");

String b = request.getParameter("Problem");

// String a = request.getParameter("message");

StringBuffer text = new StringBuffer(request.getParameter("message"));

int loc = (new String(text)).indexOf('\n');

while(loc > 0){

text.replace(loc, loc+1, "<BR>");

loc = (new String(text)).indexOf('\n');

}

request.setAttribute("message", text);

request.setAttribute("problem", b);

request.getRequestDispatcher("./index.jsp").forward(request, response);

}

以上是 在Java字符串中获取Textarea换行符 的全部内容, 来源链接: utcz.com/qa/433758.html

回到顶部