/br>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">在使用Tomcat进行Web开发时，你可能会遇到乱码问题。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">这通常是因为请求或响应的字符编码与数据的实际编码不一致导致的。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">例如，你的数据可能是UTF-8编码的，但Tomcat可能默认使用ISO-8859-1编码来处理请求和响应。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">这时，你就可能会看到一些奇怪的字符，即我们所说的乱码。

/p>

div class="wp-block-image" style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">

/div>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">对于GET请求，Tomcat默认使用ISO-8859-1编码来解析URL中的参数。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">如果你的参数是UTF-8编码的，那么你需要告诉Tomcat使用UTF-8编码来解析参数。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">你可以在Tomcat的配置文件中，找到元素，添加属性：

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">这样，Tomcat就会使用UTF-8编码来解析URL中的参数，从而避免了GET请求的乱码问题。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">对于POST请求，Tomcat默认使用ISO-8859-1编码来读取请求体中的数据。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">如果你的数据是UTF-8编码的，你需要在读取数据前，告诉Tomcat使用UTF-8编码：

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">这样，Tomcat就会使用UTF-8编码来读取请求体中的数据，从而避免了POST请求的乱码问题。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">对于响应，Tomcat同样默认使用ISO-8859-1编码。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">如果你的数据是UTF-8编码的，你需要在发送响应前，告诉Tomcat使用UTF-8编码，并通知浏览器数据是UTF-8编码的：

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">这样，Tomcat就会使用UTF-8编码来发送响应，浏览器也会知道数据是UTF-8编码的，从而避免了响应的乱码问题。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">总的来说，解决Tomcat的乱码问题主要是通过设置正确的字符编码来实现的。

/p>

p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 20px; overflow-wrap: break-word; text-indent: 30px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); outline: 0px !important; backdrop-filter: none !important;">我们需要根据请求的类型和数据的实际编码，正确地设置Tomcat的字符编码，从而避免乱码问题。

/p>

p>

/p>